120617121 has 16 divisors (see below), whose sum is σ = 166844160. Its totient is φ = 77450880.

The previous prime is 120617113. The next prime is 120617137. The reversal of 120617121 is 121716021.

It is a happy number.

It is not a de Polignac number, because 120617121 - 2³ = 120617113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120616121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (10427760).

Almost surely, 2^120617121 is an apocalyptic number.

It is an amenable number.

120617121 is a deficient number, since it is larger than the sum of its proper divisors (46227039).

120617121 is a wasteful number, since it uses less digits than its factorization.

120617121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 120617121 is about 10982.5826197666. The cubic root of 120617121 is about 494.0864980456.

The spelling of 120617121 in words is "one hundred twenty million, six hundred seventeen thousand, one hundred twenty-one".