22149212571 has 12 divisors (see below), whose sum is σ = 32000133880. Its totient is φ = 14762990880.

The previous prime is 22149212549. The next prime is 22149212639. The reversal of 22149212571 is 17521294122.

It is a happy number.

22149212571 is a `hidden beast` number, since 2 + 21 + 49 + 21 + 2 + 571 = 666.

It is not a de Polignac number, because 22149212571 - 2⁵ = 22149212539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22149232571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217645 + ... + 302766.

Almost surely, 2^22149212571 is an apocalyptic number.

22149212571 is a deficient number, since it is larger than the sum of its proper divisors (9850921309).

22149212571 is a wasteful number, since it uses less digits than its factorization.

22149212571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525146 (or 525143 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The spelling of 22149212571 in words is "twenty-two billion, one hundred forty-nine million, two hundred twelve thousand, five hundred seventy-one".