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1222102010212 = 2229971016310687
BaseRepresentation
bin10001110010001010111…
…101001100100101100100
311022211110101112120011021
4101302022331030211210
5130010331103311322
62333231555220524
7154202553455416
oct21621275144544
94284411476137
101222102010212
114313217a7536
12178a275a7744
138b322605465
1443215a609b6
1521bca2694c7
hex11c8af4c964

1222102010212 has 48 divisors (see below), whose sum is σ = 2235663682560. Its totient is φ = 583785925632.

The previous prime is 1222102010201. The next prime is 1222102010219. The reversal of 1222102010212 is 2120102012221.

It is a happy number.

It is a super-2 number, since 2×12221020102122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222102010219) 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, 114348733 + ... + 114359419.

It is an arithmetic number, because the mean of its divisors is an integer number (46576326720).

Almost surely, 21222102010212 is an apocalyptic number.

It is an amenable number.

1222102010212 is a deficient number, since it is larger than the sum of its proper divisors (1013561672348).

1222102010212 is a wasteful number, since it uses less digits than its factorization.

1222102010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20980 (or 20978 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222102010212 its reverse (2120102012221), we get a palindrome (3342204022433).

The spelling of 1222102010212 in words is "one trillion, two hundred twenty-two billion, one hundred two million, ten thousand, two hundred twelve".

Divisors: 1 2 4 29 58 97 116 194 388 2813 5626 10163 10687 11252 20326 21374 40652 42748 294727 309923 589454 619846 985811 1036639 1178908 1239692 1971622 2073278 3943244 4146556 28588519 30062531 57177038 60125062 108611981 114354076 120250124 217223962 434447924 3149747449 6299494898 10535362157 12598989796 21070724314 42141448628 305525502553 611051005106 1222102010212