22520223402 has 32 divisors (see below), whose sum is σ = 45577002240. Its totient is φ = 7417428480.

The previous prime is 22520223377. The next prime is 22520223431. The reversal of 22520223402 is 20432202522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832002 + ... + 858642.

It is an arithmetic number, because the mean of its divisors is an integer number (1424281320).

Almost surely, 2^22520223402 is an apocalyptic number.

22520223402 is an abundant number, since it is smaller than the sum of its proper divisors (23056778838).

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

22520223402 is a wasteful number, since it uses less digits than its factorization.

22520223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28318.

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 22520223402 its reverse (20432202522), we get a palindrome (42952425924).

The spelling of 22520223402 in words is "twenty-two billion, five hundred twenty million, two hundred twenty-three thousand, four hundred two".