22200901 has 2 divisors, whose sum is σ = 22200902. Its totient is φ = 22200900.

The previous prime is 22200887. The next prime is 22200947. The reversal of 22200901 is 10900222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21399876 + 801025 = 4626^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200901 - 2¹⁷ = 22069829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22200001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100450 + 11100451.

It is an arithmetic number, because the mean of its divisors is an integer number (11100451).

Almost surely, 2^22200901 is an apocalyptic number.

It is an amenable number.

22200901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200901 is an equidigital number, since it uses as much as digits as its factorization.

22200901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 22200901 is about 4711.7832080859. The cubic root of 22200901 is about 281.0542779190.

The spelling of 22200901 in words is "twenty-two million, two hundred thousand, nine hundred one".