22121210398 has 16 divisors (see below), whose sum is σ = 37928872800. Its totient is φ = 9478819296.

The previous prime is 22121210383. The next prime is 22121210429. The reversal of 22121210398 is 89301212122.

It is a congruent number.

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, 59073 + ... + 218476.

It is an arithmetic number, because the mean of its divisors is an integer number (2370554550).

Almost surely, 2^22121210398 is an apocalyptic number.

22121210398 is a deficient number, since it is larger than the sum of its proper divisors (15807662402).

22121210398 is a wasteful number, since it uses less digits than its factorization.

22121210398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283251.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 22121210398 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten thousand, three hundred ninety-eight".