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2022120221212 = 22713347149310723
BaseRepresentation
bin11101011011001111110…
…000011110101000011100
321011022110000221111221101
4131123033300132220130
5231112300234034322
64144541010042444
7266044011165640
oct35331760365034
97138400844841
102022120221212
1170a63816a443
12287a97b79424
131188ba289b70
146dc2a5a6c20
15378eee57327
hex1d6cfc1ea1c

2022120221212 has 96 divisors (see below), whose sum is σ = 4371220449792. Its totient is φ = 797045688576.

The previous prime is 2022120221167. The next prime is 2022120221237. The reversal of 2022120221212 is 2121220212202.

It is a self number, because there is not a number n which added to its sum of digits gives 2022120221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188572483 + ... + 188583205.

It is an arithmetic number, because the mean of its divisors is an integer number (45533546352).

Almost surely, 22022120221212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022120221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185610224896).

2022120221212 is an abundant number, since it is smaller than the sum of its proper divisors (2349100228580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2022120221212 is a wasteful number, since it uses less digits than its factorization.

2022120221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587 (or 12585 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2022120221212 its reverse (2121220212202), we get a palindrome (4143340433414).

The spelling of 2022120221212 in words is "two trillion, twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 347 364 694 1388 1493 2429 2986 4511 4858 5972 9022 9716 10451 10723 18044 19409 20902 21446 31577 38818 41804 42892 63154 75061 77636 126308 135863 139399 150122 271726 278798 300244 518071 543452 557596 975793 1036142 1951586 2072284 3626497 3720881 3903172 6734923 7252994 7441762 13469846 14505988 14883524 16009439 26046167 26939692 32018878 47144461 48371453 52092334 64037756 94288922 96742906 104184668 112066073 188577844 193485812 208122707 224132146 338600171 416245414 448264292 677200342 832490828 1354400684 1456858949 2913717898 5555275333 5827435796 11110550666 22221101332 38886927331 72218579329 77773854662 144437158658 155547709324 288874317316 505530055303 1011060110606 2022120221212