22204139 has 2 divisors, whose sum is σ = 22204140. Its totient is φ = 22204138.

The previous prime is 22204121. The next prime is 22204151. The reversal of 22204139 is 93140222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22204139 - 2¹² = 22200043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22204109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102069 + 11102070.

It is an arithmetic number, because the mean of its divisors is an integer number (11102070).

Almost surely, 2^22204139 is an apocalyptic number.

22204139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204139 is an equidigital number, since it uses as much as digits as its factorization.

22204139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22204139 is about 4712.1268021988. The cubic root of 22204139 is about 281.0679411709.

The spelling of 22204139 in words is "twenty-two million, two hundred four thousand, one hundred thirty-nine".