22662021522 has 64 divisors (see below), whose sum is σ = 53669018880. Its totient is φ = 6241799424.

The previous prime is 22662021517. The next prime is 22662021533. The reversal of 22662021522 is 22512026622.

It is a self number, because there is not a number n which added to its sum of digits gives 22662021522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 781108 + ... + 809600.

It is an arithmetic number, because the mean of its divisors is an integer number (838578420).

Almost surely, 2^22662021522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22662021522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26834509440).

22662021522 is an abundant number, since it is smaller than the sum of its proper divisors (31006997358).

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

22662021522 is a wasteful number, since it uses less digits than its factorization.

22662021522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29187.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 22662021522 in words is "twenty-two billion, six hundred sixty-two million, twenty-one thousand, five hundred twenty-two".