120016621 has 8 divisors (see below), whose sum is σ = 120954464. Its totient is φ = 119082960.

The previous prime is 120016607. The next prime is 120016627. The reversal of 120016621 is 126610021.

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 120016621 - 2⁹ = 120016109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120016627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77626 + ... + 79156.

It is an arithmetic number, because the mean of its divisors is an integer number (15119308).

Almost surely, 2^120016621 is an apocalyptic number.

It is an amenable number.

120016621 is a deficient number, since it is larger than the sum of its proper divisors (937843).

120016621 is a wasteful number, since it uses less digits than its factorization.

120016621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 120016621 is about 10955.2097652213. The cubic root of 120016621 is about 493.2651865430.

Adding to 120016621 its reverse (126610021), we get a palindrome (246626642).

The spelling of 120016621 in words is "one hundred twenty million, sixteen thousand, six hundred twenty-one".