22202222197 has 2 divisors, whose sum is σ = 22202222198. Its totient is φ = 22202222196.

The previous prime is 22202222167. The next prime is 22202222213. The reversal of 22202222197 is 79122220222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13565493841 + 8636728356 = 116471^2 + 92934^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202222197 - 2¹¹ = 22202220149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202222167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101111098 + 11101111099.

It is an arithmetic number, because the mean of its divisors is an integer number (11101111099).

Almost surely, 2^22202222197 is an apocalyptic number.

It is an amenable number.

22202222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202222197 is an equidigital number, since it uses as much as digits as its factorization.

22202222197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 22202222197 in words is "twenty-two billion, two hundred two million, two hundred twenty-two thousand, one hundred ninety-seven".