122112197 has 2 divisors, whose sum is σ = 122112198. Its totient is φ = 122112196.

The previous prime is 122112187. The next prime is 122112209. The reversal of 122112197 is 791211221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93103201 + 29008996 = 9649^2 + 5386^2 .

It is an emirp because it is prime and its reverse (791211221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122112197 - 2²⁴ = 105334981 is a prime.

It is a super-2 number, since 2×122112197² = 29822777312333618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122112167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61056098 + 61056099.

It is an arithmetic number, because the mean of its divisors is an integer number (61056099).

Almost surely, 2^122112197 is an apocalyptic number.

It is an amenable number.

122112197 is a deficient number, since it is larger than the sum of its proper divisors (1).

122112197 is an equidigital number, since it uses as much as digits as its factorization.

122112197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 26.

The square root of 122112197 is about 11050.4387695693. The cubic root of 122112197 is about 496.1195582517.

The spelling of 122112197 in words is "one hundred twenty-two million, one hundred twelve thousand, one hundred ninety-seven".