120122775 has 18 divisors (see below), whose sum is σ = 215153640. Its totient is φ = 64065360.

The previous prime is 120122753. The next prime is 120122797. The reversal of 120122775 is 577221021.

It is an interprime number because it is at equal distance from previous prime (120122753) and next prime (120122797).

It is not a de Polignac number, because 120122775 - 2⁶ = 120122711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 266715 + ... + 267164.

It is an arithmetic number, because the mean of its divisors is an integer number (11952980).

Almost surely, 2^120122775 is an apocalyptic number.

120122775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120122775 is a deficient number, since it is larger than the sum of its proper divisors (95030865).

120122775 is a wasteful number, since it uses less digits than its factorization.

120122775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533895 (or 533887 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 120122775 is about 10960.0536038835. The cubic root of 120122775 is about 493.4105737452.

Adding to 120122775 its reverse (577221021), we get a palindrome (697343796).

The spelling of 120122775 in words is "one hundred twenty million, one hundred twenty-two thousand, seven hundred seventy-five".