120121135 has 16 divisors (see below), whose sum is σ = 153819360. Its totient is φ = 89786880.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121135 is 531121021.

It is not a de Polignac number, because 120121135 - 2¹⁹ = 119596847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726 + ... + 15595.

It is an arithmetic number, because the mean of its divisors is an integer number (9613710).

Almost surely, 2^120121135 is an apocalyptic number.

120121135 is a deficient number, since it is larger than the sum of its proper divisors (33698225).

120121135 is a wasteful number, since it uses less digits than its factorization.

120121135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17418.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 120121135 is about 10959.9787864758. The cubic root of 120121135 is about 493.4083282731.

Adding to 120121135 its reverse (531121021), we get a palindrome (651242156).

The spelling of 120121135 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred thirty-five".