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202220011212 = 223711371732463
BaseRepresentation
bin1011110001010101000…
…0000111111011001100
3201022222001121221100220
42330111100013323030
511303121310324322
6232522032351340
720416125506622
oct2742520077314
9638861557326
10202220011212
1178840a1950a
12332370a5550
13160b923908b
149b04c8b512
1553d82e555c
hex2f15407ecc

202220011212 has 48 divisors (see below), whose sum is σ = 481985344512. Its totient is φ = 65972152960.

The previous prime is 202220011153. The next prime is 202220011219. The reversal of 202220011212 is 212110022202.

202220011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202220011191 and 202220011200.

It is not an unprimeable number, because it can be changed into a prime (202220011219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749508 + ... + 982955.

It is an arithmetic number, because the mean of its divisors is an integer number (10041361344).

Almost surely, 2202220011212 is an apocalyptic number.

It is an amenable number.

202220011212 is an abundant number, since it is smaller than the sum of its proper divisors (279765333300).

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

202220011212 is a wasteful number, since it uses less digits than its factorization.

202220011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732678 (or 1732676 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202220011212 its reverse (212110022202), we get a palindrome (414330033414).

The spelling of 202220011212 in words is "two hundred two billion, two hundred twenty million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 71 137 142 213 274 284 411 426 548 822 852 1644 9727 19454 29181 38908 58362 116724 1732463 3464926 5197389 6929852 10394778 20789556 123004873 237347431 246009746 369014619 474694862 492019492 712042293 738029238 949389724 1424084586 1476058476 2848169172 16851667601 33703335202 50555002803 67406670404 101110005606 202220011212