120019121 has 8 divisors (see below), whose sum is σ = 121389504. Its totient is φ = 118656720.

The previous prime is 120019117. The next prime is 120019127. The reversal of 120019121 is 121910021.

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

It is a cyclic number.

It is not a de Polignac number, because 120019121 - 2² = 120019117 is a prime.

It is a super-2 number, since 2×120019121² = 28809178811225282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120019121.

It is not an unprimeable number, because it can be changed into a prime (120019127) 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, 31316 + ... + 34938.

It is an arithmetic number, because the mean of its divisors is an integer number (15173688).

Almost surely, 2^120019121 is an apocalyptic number.

It is an amenable number.

120019121 is a deficient number, since it is larger than the sum of its proper divisors (1370383).

120019121 is a wasteful number, since it uses less digits than its factorization.

120019121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 120019121 is about 10955.3238655916. The cubic root of 120019121 is about 493.2686114976.

Adding to 120019121 its reverse (121910021), we get a palindrome (241929142).

The spelling of 120019121 in words is "one hundred twenty million, nineteen thousand, one hundred twenty-one".