22238197 has 2 divisors, whose sum is σ = 22238198. Its totient is φ = 22238196.

The previous prime is 22238143. The next prime is 22238201. The reversal of 22238197 is 79183222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 5803281 = 4054^2 + 2409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22238197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22238137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11119098 + 11119099.

It is an arithmetic number, because the mean of its divisors is an integer number (11119099).

Almost surely, 2^22238197 is an apocalyptic number.

It is an amenable number.

22238197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22238197 is an equidigital number, since it uses as much as digits as its factorization.

22238197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 22238197 is about 4715.7392845661. The cubic root of 22238197 is about 281.2115738778.

The spelling of 22238197 in words is "twenty-two million, two hundred thirty-eight thousand, one hundred ninety-seven".