22101239 has 2 divisors, whose sum is σ = 22101240. Its totient is φ = 22101238.

The previous prime is 22101193. The next prime is 22101253. The reversal of 22101239 is 93210122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22101239 - 2¹⁶ = 22035703 is a prime.

It is a Sophie Germain 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 22101239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050619 + 11050620.

It is an arithmetic number, because the mean of its divisors is an integer number (11050620).

Almost surely, 2^22101239 is an apocalyptic number.

22101239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101239 is an equidigital number, since it uses as much as digits as its factorization.

22101239 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 22101239 is about 4701.1954862567. The cubic root of 22101239 is about 280.6330870532.

The spelling of 22101239 in words is "twenty-two million, one hundred one thousand, two hundred thirty-nine".