120611021 has 2 divisors, whose sum is σ = 120611022. Its totient is φ = 120611020.

The previous prime is 120611017. The next prime is 120611041. The reversal of 120611021 is 120116021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119137225 + 1473796 = 10915^2 + 1214^2 .

It is an emirp because it is prime and its reverse (120116021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120611021 - 2² = 120611017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120610987 and 120611005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120611041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60305510 + 60305511.

It is an arithmetic number, because the mean of its divisors is an integer number (60305511).

Almost surely, 2^120611021 is an apocalyptic number.

It is an amenable number.

120611021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120611021 is an equidigital number, since it uses as much as digits as its factorization.

120611021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 120611021 is about 10982.3049037987. The cubic root of 120611021 is about 494.0781687183.

Adding to 120611021 its reverse (120116021), we get a palindrome (240727042).

The spelling of 120611021 in words is "one hundred twenty million, six hundred eleven thousand, twenty-one".