2551000522122 has 24 divisors (see below), whose sum is σ = 5952334552164. Its totient is φ = 784923237504.

The previous prime is 2551000522111. The next prime is 2551000522127. The reversal of 2551000522122 is 2212250001552.

It is a happy number.

2551000522122 is a `hidden beast` number, since 2 + 5 + 5 + 10 + 0 + 0 + 522 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1950404971761 + 600595550361 = 1396569^2 + 774981^2 .

It is a super-2 number, since 2×2551000522122² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2551000522127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5450855583 + ... + 5450856050.

Almost surely, 2^{2551000522122} is an apocalyptic number.

2551000522122 is an abundant number, since it is smaller than the sum of its proper divisors (3401334030042).

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

2551000522122 is a wasteful number, since it uses less digits than its factorization.

2551000522122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901711654 (or 10901711651 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 2551000522122 its reverse (2212250001552), we get a palindrome (4763250523674).

The spelling of 2551000522122 in words is "two trillion, five hundred fifty-one billion, five hundred twenty-two thousand, one hundred twenty-two".