120622661 has 2 divisors, whose sum is σ = 120622662. Its totient is φ = 120622660.

The previous prime is 120622657. The next prime is 120622699. The reversal of 120622661 is 166226021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62710561 + 57912100 = 7919^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 120622661 - 2² = 120622657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120622661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120622631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60311330 + 60311331.

It is an arithmetic number, because the mean of its divisors is an integer number (60311331).

Almost surely, 2^120622661 is an apocalyptic number.

It is an amenable number.

120622661 is a deficient number, since it is larger than the sum of its proper divisors (1).

120622661 is an equidigital number, since it uses as much as digits as its factorization.

120622661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 120622661 is about 10982.8348344132. The cubic root of 120622661 is about 494.0940624700.

Adding to 120622661 its reverse (166226021), we get a palindrome (286848682).

The spelling of 120622661 in words is "one hundred twenty million, six hundred twenty-two thousand, six hundred sixty-one".