122112997 has 4 divisors (see below), whose sum is σ = 126323820. Its totient is φ = 117902176.

The previous prime is 122112979. The next prime is 122113087. The reversal of 122112997 is 799211221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81739681 + 40373316 = 9041^2 + 6354^2 .

It is a cyclic number.

It is not a de Polignac number, because 122112997 - 2⁷ = 122112869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105368 + ... + 2105425.

It is an arithmetic number, because the mean of its divisors is an integer number (31580955).

Almost surely, 2^122112997 is an apocalyptic number.

It is an amenable number.

122112997 is a deficient number, since it is larger than the sum of its proper divisors (4210823).

122112997 is an equidigital number, since it uses as much as digits as its factorization.

122112997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210822.

The product of its digits is 4536, while the sum is 34.

The square root of 122112997 is about 11050.4749671677. The cubic root of 122112997 is about 496.1206416673.

The spelling of 122112997 in words is "one hundred twenty-two million, one hundred twelve thousand, nine hundred ninety-seven".