120890121 has 8 divisors (see below), whose sum is σ = 175840224. Its totient is φ = 73266720.

The previous prime is 120890113. The next prime is 120890149. The reversal of 120890121 is 121098021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120890121 - 2³ = 120890113 is a prime.

It is a super-2 number, since 2×120890121² = 29228842710789282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120890091 and 120890100.

It is not an unprimeable number, because it can be changed into a prime (120890101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831636 + ... + 1831701.

It is an arithmetic number, because the mean of its divisors is an integer number (21980028).

Almost surely, 2^120890121 is an apocalyptic number.

120890121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120890121 is a deficient number, since it is larger than the sum of its proper divisors (54950103).

120890121 is a wasteful number, since it uses less digits than its factorization.

120890121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663351.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 120890121 is about 10995.0043656199. The cubic root of 120890121 is about 494.4589824151.

The spelling of 120890121 in words is "one hundred twenty million, eight hundred ninety thousand, one hundred twenty-one".