252101200020 has 96 divisors (see below), whose sum is σ = 736683171840. Its totient is φ = 64294538880.

The previous prime is 252101200007. The next prime is 252101200033. The reversal of 252101200020 is 20002101252.

It is an interprime number because it is at equal distance from previous prime (252101200007) and next prime (252101200033).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 17462205 + ... + 17476635.

It is an arithmetic number, because the mean of its divisors is an integer number (7673783040).

Almost surely, 2^252101200020 is an apocalyptic number.

252101200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252101200020 is an abundant number, since it is smaller than the sum of its proper divisors (484581971820).

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

252101200020 is a wasteful number, since it uses less digits than its factorization.

252101200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27125 (or 27123 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 252101200020 its reverse (20002101252), we get a palindrome (272103301272).

The spelling of 252101200020 in words is "two hundred fifty-two billion, one hundred one million, two hundred thousand, twenty".