120120121 has 8 divisors (see below), whose sum is σ = 131605344. Its totient is φ = 108729120.

The previous prime is 120120097. The next prime is 120120127. The reversal of 120120121 is 121021021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120120121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120098 and 120120107.

It is not an unprimeable number, because it can be changed into a prime (120120127) 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, 20871 + ... + 25996.

It is an arithmetic number, because the mean of its divisors is an integer number (16450668).

Almost surely, 2^120120121 is an apocalyptic number.

120120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120120121 is a deficient number, since it is larger than the sum of its proper divisors (11485223).

120120121 is a wasteful number, since it uses less digits than its factorization.

120120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47111.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 120120121 is about 10959.9325271646. The cubic root of 120120121 is about 493.4069399039.

Adding to 120120121 its reverse (121021021), we get a palindrome (241141142).

The spelling of 120120121 in words is "one hundred twenty million, one hundred twenty thousand, one hundred twenty-one".