252011021443020 has 144 divisors (see below), whose sum is σ = 874976094457920. Its totient is φ = 57514306871808.

The previous prime is 252011021442979. The next prime is 252011021443039. The reversal of 252011021443020 is 20344120110252.

252011021443020 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 1 + 10 + 214 + 430 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152323275 + ... + 153968834.

It is an arithmetic number, because the mean of its divisors is an integer number (6076222878180).

Almost surely, 2^{252011021443020} is an apocalyptic number.

252011021443020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252011021443020 is an abundant number, since it is smaller than the sum of its proper divisors (622965073014900).

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

252011021443020 is a wasteful number, since it uses less digits than its factorization.

252011021443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306292784 (or 306292779 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 252011021443020 its reverse (20344120110252), we get a palindrome (272355141553272).

The spelling of 252011021443020 in words is "two hundred fifty-two trillion, eleven billion, twenty-one million, four hundred forty-three thousand, twenty".