122112977 has 4 divisors (see below), whose sum is σ = 139557696. Its totient is φ = 104668260.

The previous prime is 122112973. The next prime is 122112979. The reversal of 122112977 is 779211221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122112977 - 2² = 122112973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122112973) 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, 8722349 + ... + 8722362.

It is an arithmetic number, because the mean of its divisors is an integer number (34889424).

Almost surely, 2^122112977 is an apocalyptic number.

It is an amenable number.

122112977 is a deficient number, since it is larger than the sum of its proper divisors (17444719).

122112977 is an equidigital number, since it uses as much as digits as its factorization.

122112977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444718.

The product of its digits is 3528, while the sum is 32.

The square root of 122112977 is about 11050.4740622292. The cubic root of 122112977 is about 496.1206145820.

The spelling of 122112977 in words is "one hundred twenty-two million, one hundred twelve thousand, nine hundred seventy-seven".