22113111197 has 2 divisors, whose sum is σ = 22113111198. Its totient is φ = 22113111196.

The previous prime is 22113111179. The next prime is 22113111271. The reversal of 22113111197 is 79111131122.

Together with previous prime (22113111179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20401551556 + 1711559641 = 142834^2 + 41371^2 .

It is a cyclic number.

It is not a de Polignac number, because 22113111197 - 2⁶ = 22113111133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22113111127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056555598 + 11056555599.

It is an arithmetic number, because the mean of its divisors is an integer number (11056555599).

Almost surely, 2^22113111197 is an apocalyptic number.

It is an amenable number.

22113111197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113111197 is an equidigital number, since it uses as much as digits as its factorization.

22113111197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 29.

The spelling of 22113111197 in words is "twenty-two billion, one hundred thirteen million, one hundred eleven thousand, one hundred ninety-seven".