22102139 has 2 divisors, whose sum is σ = 22102140. Its totient is φ = 22102138.

The previous prime is 22102121. The next prime is 22102151. The reversal of 22102139 is 93120122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22102139 - 2²⁰ = 21053563 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22102139.

It is not a weakly prime, because it can be changed into another prime (22102169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051069 + 11051070.

It is an arithmetic number, because the mean of its divisors is an integer number (11051070).

Almost surely, 2^22102139 is an apocalyptic number.

22102139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102139 is an equidigital number, since it uses as much as digits as its factorization.

22102139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 22102139 is about 4701.2912056158. The cubic root of 22102139 is about 280.6368962869.

The spelling of 22102139 in words is "twenty-two million, one hundred two thousand, one hundred thirty-nine".