21922430211 has 24 divisors (see below), whose sum is σ = 34574319936. Its totient is φ = 13274827440.

The previous prime is 21922430203. The next prime is 21922430213. The reversal of 21922430211 is 11203422912.

21922430211 is a `hidden beast` number, since 2 + 19 + 2 + 2 + 430 + 211 = 666.

It is not a de Polignac number, because 21922430211 - 2³ = 21922430203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21922430213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19936 + ... + 210338.

It is an arithmetic number, because the mean of its divisors is an integer number (1440596664).

Almost surely, 2^21922430211 is an apocalyptic number.

21922430211 is a deficient number, since it is larger than the sum of its proper divisors (12651889725).

21922430211 is a wasteful number, since it uses less digits than its factorization.

21922430211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191583 (or 191580 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 21922430211 in words is "twenty-one billion, nine hundred twenty-two million, four hundred thirty thousand, two hundred eleven".