22102279 has 2 divisors, whose sum is σ = 22102280. Its totient is φ = 22102278.

The previous prime is 22102277. The next prime is 22102331. The reversal of 22102279 is 97220122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22102279 - 2¹ = 22102277 is a prime.

Together with 22102277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22102277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051139 + 11051140.

It is an arithmetic number, because the mean of its divisors is an integer number (11051140).

Almost surely, 2^22102279 is an apocalyptic number.

22102279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102279 is an equidigital number, since it uses as much as digits as its factorization.

22102279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22102279 is about 4701.3060951187. The cubic root of 22102279 is about 280.6374888250.

It can be divided in two parts, 2210 and 2279, that added together give a square (4489 = 67²).

The spelling of 22102279 in words is "twenty-two million, one hundred two thousand, two hundred seventy-nine".