120121140 has 24 divisors (see below), whose sum is σ = 336339360. Its totient is φ = 32032288.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121140 is 41121021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000950 + ... + 1001069.

It is an arithmetic number, because the mean of its divisors is an integer number (14014140).

Almost surely, 2^120121140 is an apocalyptic number.

120121140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121140 is an abundant number, since it is smaller than the sum of its proper divisors (216218220).

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

120121140 is a wasteful number, since it uses less digits than its factorization.

120121140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002031 (or 2002029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 120121140 is about 10959.9790145784. The cubic root of 120121140 is about 493.4083351191.

Adding to 120121140 its reverse (41121021), we get a palindrome (161242161).

The spelling of 120121140 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred forty".