122042291 has 6 divisors (see below), whose sum is σ = 141967620. Its totient is φ = 104607636.

The previous prime is 122042251. The next prime is 122042293. The reversal of 122042291 is 192240221.

It is not a de Polignac number, because 122042291 - 2⁶ = 122042227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122042293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1245281 + ... + 1245378.

It is an arithmetic number, because the mean of its divisors is an integer number (23661270).

Almost surely, 2^122042291 is an apocalyptic number.

122042291 is a deficient number, since it is larger than the sum of its proper divisors (19925329).

122042291 is an equidigital number, since it uses as much as digits as its factorization.

122042291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490673 (or 2490666 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 122042291 is about 11047.2752749264. The cubic root of 122042291 is about 496.0248684093.

The spelling of 122042291 in words is "one hundred twenty-two million, forty-two thousand, two hundred ninety-one".