521012400152202 has 48 divisors (see below), whose sum is σ = 1290129061565760. Its totient is φ = 148860325950336.

The previous prime is 521012400152171. The next prime is 521012400152261. The reversal of 521012400152202 is 202251004210125.

521012400152202 is a `hidden beast` number, since 5 + 2 + 1 + 0 + 1 + 2 + 400 + 1 + 52 + 202 = 666.

It is a super-2 number, since 2×521012400152202² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49705449 + ... + 59267667.

It is an arithmetic number, because the mean of its divisors is an integer number (26877688782620).

Almost surely, 2^{521012400152202} is an apocalyptic number.

521012400152202 is an abundant number, since it is smaller than the sum of its proper divisors (769116661413558).

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

521012400152202 is a wasteful number, since it uses less digits than its factorization.

521012400152202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994667 (or 9994664 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 521012400152202 its reverse (202251004210125), we get a palindrome (723263404362327).

The spelling of 521012400152202 in words is "five hundred twenty-one trillion, twelve billion, four hundred million, one hundred fifty-two thousand, two hundred two".