22402104520 has 32 divisors (see below), whose sum is σ = 50444321400. Its totient is φ = 8953804288.

The previous prime is 22402104511. The next prime is 22402104539. The reversal of 22402104520 is 2540120422.

It can be written as a sum of positive squares in 4 ways, for example, as 20703180996 + 1698923524 = 143886^2 + 41218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22402104491 and 22402104500.

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, 168205 + ... + 270364.

Almost surely, 2^22402104520 is an apocalyptic number.

22402104520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402104520 is an abundant number, since it is smaller than the sum of its proper divisors (28042216880).

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

22402104520 is a wasteful number, since it uses less digits than its factorization.

22402104520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439857 (or 439853 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22402104520 its reverse (2540120422), we get a palindrome (24942224942).

The spelling of 22402104520 in words is "twenty-two billion, four hundred two million, one hundred four thousand, five hundred twenty".