22210211197 has 2 divisors, whose sum is σ = 22210211198. Its totient is φ = 22210211196.

The previous prime is 22210211183. The next prime is 22210211201. The reversal of 22210211197 is 79111201222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21460492036 + 749719161 = 146494^2 + 27381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22210211197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22210211117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105105598 + 11105105599.

It is an arithmetic number, because the mean of its divisors is an integer number (11105105599).

Almost surely, 2^22210211197 is an apocalyptic number.

It is an amenable number.

22210211197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210211197 is an equidigital number, since it uses as much as digits as its factorization.

22210211197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 22210211197 in words is "twenty-two billion, two hundred ten million, two hundred eleven thousand, one hundred ninety-seven".