22101939 has 6 divisors (see below), whose sum is σ = 31925036. Its totient is φ = 14734620.

The previous prime is 22101923. The next prime is 22101941. The reversal of 22101939 is 93910122.

22101939 = T₁₂₆₆ + T₁₂₆₇ + ... + T₁₂₉₂.

It is not a de Polignac number, because 22101939 - 2⁴ = 22101923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1227877 + ... + 1227894.

Almost surely, 2^22101939 is an apocalyptic number.

22101939 is a deficient number, since it is larger than the sum of its proper divisors (9823097).

22101939 is a wasteful number, since it uses less digits than its factorization.

22101939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455777 (or 2455774 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 22101939 is about 4701.2699348155. The cubic root of 22101939 is about 280.6360497994.

The spelling of 22101939 in words is "twenty-two million, one hundred one thousand, nine hundred thirty-nine".