22102087 has 12 divisors (see below), whose sum is σ = 26076816. Its totient is φ = 18674880.

The previous prime is 22102063. The next prime is 22102097. The reversal of 22102087 is 78020122.

It is a de Polignac number, because none of the positive numbers 2^k-22102087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102097) 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, 303 + ... + 6655.

It is an arithmetic number, because the mean of its divisors is an integer number (2173068).

Almost surely, 2^22102087 is an apocalyptic number.

22102087 is a deficient number, since it is larger than the sum of its proper divisors (3974729).

22102087 is an equidigital number, since it uses as much as digits as its factorization.

22102087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438 (or 6431 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 22102087 is about 4701.2856752169. The cubic root of 22102087 is about 280.6366762006.

The spelling of 22102087 in words is "twenty-two million, one hundred two thousand, eighty-seven".