120211021 has 8 divisors (see below), whose sum is σ = 137456000. Its totient is φ = 102984048.

The previous prime is 120211019. The next prime is 120211073. The reversal of 120211021 is 120112021.

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 120211021 - 2¹ = 120211019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120210989 and 120211007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16120 + ... + 22366.

It is an arithmetic number, because the mean of its divisors is an integer number (17182000).

Almost surely, 2^120211021 is an apocalyptic number.

It is an amenable number.

120211021 is a deficient number, since it is larger than the sum of its proper divisors (17244979).

120211021 is an equidigital number, since it uses as much as digits as its factorization.

120211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003.

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

The square root of 120211021 is about 10964.0786662628. The cubic root of 120211021 is about 493.5313691883.

Adding to 120211021 its reverse (120112021), we get a palindrome (240323042).

The spelling of 120211021 in words is "one hundred twenty million, two hundred eleven thousand, twenty-one".