20122351111252 has 96 divisors (see below), whose sum is σ = 39767191398144. Its totient is φ = 8839635763200.

The previous prime is 20122351111249. The next prime is 20122351111271. The reversal of 20122351111252 is 25211115322102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122351111252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298424502 + ... + 298491922.

It is an arithmetic number, because the mean of its divisors is an integer number (414241577064).

Almost surely, 2^{20122351111252} is an apocalyptic number.

It is an amenable number.

20122351111252 is a deficient number, since it is larger than the sum of its proper divisors (19644840286892).

20122351111252 is a wasteful number, since it uses less digits than its factorization.

20122351111252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68689 (or 68687 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 20122351111252 its reverse (25211115322102), we get a palindrome (45333466433354).

The spelling of 20122351111252 in words is "twenty trillion, one hundred twenty-two billion, three hundred fifty-one million, one hundred eleven thousand, two hundred fifty-two".