120722220 has 72 divisors (see below), whose sum is σ = 367121664. Its totient is φ = 32110848.

The previous prime is 120722209. The next prime is 120722237. The reversal of 120722220 is 22227021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120722193 and 120722202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110517 + ... + 111603.

It is an arithmetic number, because the mean of its divisors is an integer number (5098912).

Almost surely, 2^120722220 is an apocalyptic number.

120722220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120722220 is an abundant number, since it is smaller than the sum of its proper divisors (246399444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120722220 is a wasteful number, since it uses less digits than its factorization.

120722220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 120722220 is about 10987.3663814401. The cubic root of 120722220 is about 494.2299628134.

Adding to 120722220 its reverse (22227021), we get a palindrome (142949241).

The spelling of 120722220 in words is "one hundred twenty million, seven hundred twenty-two thousand, two hundred twenty".