22431021424402 has 16 divisors (see below), whose sum is σ = 34584814723032. Its totient is φ = 10904617079680.

The previous prime is 22431021424367. The next prime is 22431021424417. The reversal of 22431021424402 is 20442412013422.

It can be written as a sum of positive squares in 4 ways, for example, as 11965919354041 + 10465102070361 = 3459179^2 + 3234981^2 .

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, 466783213 + ... + 466831264.

Almost surely, 2^{22431021424402} is an apocalyptic number.

22431021424402 is a deficient number, since it is larger than the sum of its proper divisors (12153793298630).

22431021424402 is a wasteful number, since it uses less digits than its factorization.

22431021424402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933614813.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 22431021424402 its reverse (20442412013422), we get a palindrome (42873433437824).

The spelling of 22431021424402 in words is "twenty-two trillion, four hundred thirty-one billion, twenty-one million, four hundred twenty-four thousand, four hundred two".