22551422415522 has 128 divisors (see below), whose sum is σ = 63744911677440. Its totient is φ = 5122358922240.

The previous prime is 22551422415521. The next prime is 22551422415523.

22551422415522 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (22551422415521) and next prime (22551422415523).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (22551422415521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98696823 + ... + 98925050.

It is an arithmetic number, because the mean of its divisors is an integer number (498007122480).

Almost surely, 2^{22551422415522} is an apocalyptic number.

22551422415522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22551422415522 is an abundant number, since it is smaller than the sum of its proper divisors (41193489261918).

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

22551422415522 is a wasteful number, since it uses less digits than its factorization.

22551422415522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197621928.

The product of its digits is 640000, while the sum is 42.

The spelling of 22551422415522 in words is "twenty-two trillion, five hundred fifty-one billion, four hundred twenty-two million, four hundred fifteen thousand, five hundred twenty-two".