22100139 has 12 divisors (see below), whose sum is σ = 31968456. Its totient is φ = 14712192.

The previous prime is 22100131. The next prime is 22100147. The reversal of 22100139 is 93100122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22100131) and next prime (22100147).

It is not a de Polignac number, because 22100139 - 2³ = 22100131 is a prime.

It is a super-2 number, since 2×22100139² = 976832287638642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100131) 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, 7227 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (2664038).

Almost surely, 2^22100139 is an apocalyptic number.

22100139 is a deficient number, since it is larger than the sum of its proper divisors (9868317).

22100139 is a wasteful number, since it uses less digits than its factorization.

22100139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 22100139 is about 4701.0784932822. The cubic root of 22100139 is about 280.6284311828.

The spelling of 22100139 in words is "twenty-two million, one hundred thousand, one hundred thirty-nine".