120222212021 has 2 divisors, whose sum is σ = 120222212022. Its totient is φ = 120222212020.

The previous prime is 120222211987. The next prime is 120222212023. The reversal of 120222212021 is 120212222021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82259976100 + 37962235921 = 286810^2 + 194839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120222212021 is a prime.

Together with 120222212023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120222212023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111106010 + 60111106011.

It is an arithmetic number, because the mean of its divisors is an integer number (60111106011).

Almost surely, 2^120222212021 is an apocalyptic number.

It is an amenable number.

120222212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120222212021 is an equidigital number, since it uses as much as digits as its factorization.

120222212021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 120222212021 its reverse (120212222021), we get a palindrome (240434434042).

The spelling of 120222212021 in words is "one hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, twenty-one".