120442172 has 12 divisors (see below), whose sum is σ = 211146936. Its totient is φ = 60114480.

The previous prime is 120442171. The next prime is 120442181. The reversal of 120442172 is 271244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120442171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24083 + ... + 28650.

It is an arithmetic number, because the mean of its divisors is an integer number (17595578).

Almost surely, 2^120442172 is an apocalyptic number.

It is an amenable number.

120442172 is a deficient number, since it is larger than the sum of its proper divisors (90704764).

120442172 is a wasteful number, since it uses less digits than its factorization.

120442172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53308 (or 53306 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 120442172 is about 10974.6148907376. The cubic root of 120442172 is about 493.8475000106.

Adding to 120442172 its reverse (271244021), we get a palindrome (391686193).

The spelling of 120442172 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred seventy-two".