120121424 has 20 divisors (see below), whose sum is σ = 233288640. Its totient is φ = 59917920.

The previous prime is 120121409. The next prime is 120121457. The reversal of 120121424 is 424121021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814 + ... + 15605.

It is an arithmetic number, because the mean of its divisors is an integer number (11664432).

Almost surely, 2^120121424 is an apocalyptic number.

It is an amenable number.

120121424 is a deficient number, since it is larger than the sum of its proper divisors (113167216).

120121424 is a wasteful number, since it uses less digits than its factorization.

120121424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17858 (or 17852 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 120121424 is about 10959.9919708000. The cubic root of 120121424 is about 493.4087239706.

Adding to 120121424 its reverse (424121021), we get a palindrome (544242445).

The spelling of 120121424 in words is "one hundred twenty million, one hundred twenty-one thousand, four hundred twenty-four".