22105002987 has 6 divisors (see below), whose sum is σ = 31929448772. Its totient is φ = 14736668652.

The previous prime is 22105002979. The next prime is 22105003043. The reversal of 22105002987 is 78920050122.

It is not a de Polignac number, because 22105002987 - 2³ = 22105002979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22105002967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228055713 + ... + 1228055730.

Almost surely, 2^22105002987 is an apocalyptic number.

22105002987 is a deficient number, since it is larger than the sum of its proper divisors (9824445785).

22105002987 is a wasteful number, since it uses less digits than its factorization.

22105002987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456111449 (or 2456111446 counting only the distinct ones).

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

The spelling of 22105002987 in words is "twenty-two billion, one hundred five million, two thousand, nine hundred eighty-seven".