120023221 has 2 divisors, whose sum is σ = 120023222. Its totient is φ = 120023220.

The previous prime is 120023219. The next prime is 120023231. The reversal of 120023221 is 122320021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117180625 + 2842596 = 10825^2 + 1686^2 .

It is a cyclic number.

It is not a de Polignac number, because 120023221 - 2¹ = 120023219 is a prime.

Together with 120023219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120023201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60011610 + 60011611.

It is an arithmetic number, because the mean of its divisors is an integer number (60011611).

Almost surely, 2^120023221 is an apocalyptic number.

It is an amenable number.

120023221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120023221 is an equidigital number, since it uses as much as digits as its factorization.

120023221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120023221 is about 10955.5109876263. The cubic root of 120023221 is about 493.2742283200.

Adding to 120023221 its reverse (122320021), we get a palindrome (242343242).

The spelling of 120023221 in words is "one hundred twenty million, twenty-three thousand, two hundred twenty-one".