202113221512 has 8 divisors (see below), whose sum is σ = 378962290350. Its totient is φ = 101056610752.

The previous prime is 202113221501. The next prime is 202113221539. The reversal of 202113221512 is 215122311202.

202113221512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 142124476036 + 59988745476 = 376994^2 + 244926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×202113221512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632076337 + ... + 12632076352.

Almost surely, 2^202113221512 is an apocalyptic number.

It is an amenable number.

202113221512 is a deficient number, since it is larger than the sum of its proper divisors (176849068838).

202113221512 is a wasteful number, since it uses less digits than its factorization.

202113221512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25264152695 (or 25264152691 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 202113221512 its reverse (215122311202), we get a palindrome (417235532714).

The spelling of 202113221512 in words is "two hundred two billion, one hundred thirteen million, two hundred twenty-one thousand, five hundred twelve".