120922421 has 2 divisors, whose sum is σ = 120922422. Its totient is φ = 120922420.

The previous prime is 120922409. The next prime is 120922427. The reversal of 120922421 is 124229021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62568100 + 58354321 = 7910^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 120922421 - 2⁶ = 120922357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120922427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60461210 + 60461211.

It is an arithmetic number, because the mean of its divisors is an integer number (60461211).

Almost surely, 2^120922421 is an apocalyptic number.

It is an amenable number.

120922421 is a deficient number, since it is larger than the sum of its proper divisors (1).

120922421 is an equidigital number, since it uses as much as digits as its factorization.

120922421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 120922421 is about 10996.4731164133. The cubic root of 120922421 is about 494.5030157980.

The spelling of 120922421 in words is "one hundred twenty million, nine hundred twenty-two thousand, four hundred twenty-one".