22131099 has 6 divisors (see below), whose sum is σ = 31967156. Its totient is φ = 14754060.

The previous prime is 22131097. The next prime is 22131101. The reversal of 22131099 is 99013122.

It is an interprime number because it is at equal distance from previous prime (22131097) and next prime (22131101).

It is not a de Polignac number, because 22131099 - 2¹ = 22131097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1229497 + ... + 1229514.

Almost surely, 2^22131099 is an apocalyptic number.

22131099 is a deficient number, since it is larger than the sum of its proper divisors (9836057).

22131099 is a wasteful number, since it uses less digits than its factorization.

22131099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459017 (or 2459014 counting only the distinct ones).

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

The square root of 22131099 is about 4704.3702022694. The cubic root of 22131099 is about 280.7594138019.

The spelling of 22131099 in words is "twenty-two million, one hundred thirty-one thousand, ninety-nine".