22520404442 has 16 divisors (see below), whose sum is σ = 34200714240. Its totient is φ = 11120270592.

The previous prime is 22520404433. The next prime is 22520404451. The reversal of 22520404442 is 24440402522.

It is an interprime number because it is at equal distance from previous prime (22520404433) and next prime (22520404451).

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, 432359 + ... + 481637.

It is an arithmetic number, because the mean of its divisors is an integer number (2137544640).

Almost surely, 2^22520404442 is an apocalyptic number.

22520404442 is a deficient number, since it is larger than the sum of its proper divisors (11680309798).

22520404442 is a wasteful number, since it uses less digits than its factorization.

22520404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52117.

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 22520404442 its reverse (24440402522), we get a palindrome (46960806964).

The spelling of 22520404442 in words is "twenty-two billion, five hundred twenty million, four hundred four thousand, four hundred forty-two".