251300222122 has 16 divisors (see below), whose sum is σ = 393700087872. Its totient is φ = 120076876480.

The previous prime is 251300222093. The next prime is 251300222183. The reversal of 251300222122 is 221222003152.

It is a junction number, because it is equal to n+sod(n) for n = 251300222093 and 251300222102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453503 + ... + 2553874.

It is an arithmetic number, because the mean of its divisors is an integer number (24606255492).

Almost surely, 2^251300222122 is an apocalyptic number.

251300222122 is a deficient number, since it is larger than the sum of its proper divisors (142399865750).

251300222122 is a wasteful number, since it uses less digits than its factorization.

251300222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008493.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 251300222122 its reverse (221222003152), we get a palindrome (472522225274).

The spelling of 251300222122 in words is "two hundred fifty-one billion, three hundred million, two hundred twenty-two thousand, one hundred twenty-two".