120623221 has 2 divisors, whose sum is σ = 120623222. Its totient is φ = 120623220.

The previous prime is 120623183. The next prime is 120623273. The reversal of 120623221 is 122326021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70056900 + 50566321 = 8370^2 + 7111^2 .

It is a cyclic number.

It is not a de Polignac number, because 120623221 - 2¹¹ = 120621173 is a prime.

It is a super-2 number, since 2×120623221² = 29099922888829682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120623281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60311610 + 60311611.

It is an arithmetic number, because the mean of its divisors is an integer number (60311611).

Almost surely, 2^120623221 is an apocalyptic number.

It is an amenable number.

120623221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120623221 is an equidigital number, since it uses as much as digits as its factorization.

120623221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 120623221 is about 10982.8603287122. The cubic root of 120623221 is about 494.0948270921.

Adding to 120623221 its reverse (122326021), we get a palindrome (242949242).

The spelling of 120623221 in words is "one hundred twenty million, six hundred twenty-three thousand, two hundred twenty-one".