252212021502 has 64 divisors (see below), whose sum is σ = 579056325120. Its totient is φ = 71739517824.

The previous prime is 252212021489. The next prime is 252212021531. The reversal of 252212021502 is 205120212252.

It is a super-2 number, since 2×252212021502² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16747408 + ... + 16762460.

It is an arithmetic number, because the mean of its divisors is an integer number (9047755080).

Almost surely, 2^252212021502 is an apocalyptic number.

252212021502 is an abundant number, since it is smaller than the sum of its proper divisors (326844303618).

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

252212021502 is a wasteful number, since it uses less digits than its factorization.

252212021502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16817.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 252212021502 its reverse (205120212252), we get a palindrome (457332233754).

The spelling of 252212021502 in words is "two hundred fifty-two billion, two hundred twelve million, twenty-one thousand, five hundred two".