120722655 has 32 divisors (see below), whose sum is σ = 200652480. Its totient is φ = 61931520.

The previous prime is 120722633. The next prime is 120722671. The reversal of 120722655 is 556227021.

It is not a de Polignac number, because 120722655 - 2¹⁵ = 120689887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43551 + ... + 46239.

It is an arithmetic number, because the mean of its divisors is an integer number (6270390).

Almost surely, 2^120722655 is an apocalyptic number.

120722655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120722655 is a deficient number, since it is larger than the sum of its proper divisors (79929825).

120722655 is a wasteful number, since it uses less digits than its factorization.

120722655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 120722655 is about 10987.3861768848. The cubic root of 120722655 is about 494.2305564345.

Adding to 120722655 its reverse (556227021), we get a palindrome (676949676).

The spelling of 120722655 in words is "one hundred twenty million, seven hundred twenty-two thousand, six hundred fifty-five".