22200131 has 2 divisors, whose sum is σ = 22200132. Its totient is φ = 22200130.

The previous prime is 22200119. The next prime is 22200137. The reversal of 22200131 is 13100222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200131 is a prime.

It is a super-2 number, since 2×22200131² = 985691632834322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1401014 and since 22200131 and 1401014 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22200137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100065 + 11100066.

It is an arithmetic number, because the mean of its divisors is an integer number (11100066).

Almost surely, 2^22200131 is an apocalyptic number.

22200131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200131 is an equidigital number, since it uses as much as digits as its factorization.

22200131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22200131 is about 4711.7014973362. The cubic root of 22200131 is about 281.0510285870.

Adding to 22200131 its reverse (13100222), we get a palindrome (35300353).

Subtracting from 22200131 its reverse (13100222), we obtain a palindrome (9099909).

The spelling of 22200131 in words is "twenty-two million, two hundred thousand, one hundred thirty-one".