252112155020 has 48 divisors (see below), whose sum is σ = 577683187200. Its totient is φ = 91658550720.

The previous prime is 252112154993. The next prime is 252112155047. The reversal of 252112155020 is 20551211252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252112154993) and next prime (252112155047).

It is a super-2 number, since 2×252112155020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994871 + ... + 1222289.

It is an arithmetic number, because the mean of its divisors is an integer number (12035066400).

Almost surely, 2^252112155020 is an apocalyptic number.

252112155020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252112155020 is an abundant number, since it is smaller than the sum of its proper divisors (325571032180).

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

252112155020 is a wasteful number, since it uses less digits than its factorization.

252112155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232478 (or 232476 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 252112155020 its reverse (20551211252), we get a palindrome (272663366272).

The spelling of 252112155020 in words is "two hundred fifty-two billion, one hundred twelve million, one hundred fifty-five thousand, twenty".