122407771 has 4 divisors (see below), whose sum is σ = 127729872. Its totient is φ = 117085672.

The previous prime is 122407759. The next prime is 122407781. The reversal of 122407771 is 177704221.

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

It is a cyclic number.

It is not a de Polignac number, because 122407771 - 2⁵ = 122407739 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122407711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2661016 + ... + 2661061.

It is an arithmetic number, because the mean of its divisors is an integer number (31932468).

Almost surely, 2^122407771 is an apocalyptic number.

122407771 is a deficient number, since it is larger than the sum of its proper divisors (5322101).

122407771 is an equidigital number, since it uses as much as digits as its factorization.

122407771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322100.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 122407771 is about 11063.8045445498. The cubic root of 122407771 is about 496.5195234480.

The spelling of 122407771 in words is "one hundred twenty-two million, four hundred seven thousand, seven hundred seventy-one".