122251321 has 4 divisors (see below), whose sum is σ = 126194944. Its totient is φ = 118307700.

The previous prime is 122251291. The next prime is 122251333. The reversal of 122251321 is 123152221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122251321 - 2⁹ = 122250809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122251351) 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 in 3 ways as a sum of consecutive naturals, for example, 1971765 + ... + 1971826.

It is an arithmetic number, because the mean of its divisors is an integer number (31548736).

Almost surely, 2^122251321 is an apocalyptic number.

It is an amenable number.

122251321 is a deficient number, since it is larger than the sum of its proper divisors (3943623).

122251321 is an equidigital number, since it uses as much as digits as its factorization.

122251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943622.

The product of its digits is 240, while the sum is 19.

The square root of 122251321 is about 11056.7319312716. The cubic root of 122251321 is about 496.3078985461.

The spelling of 122251321 in words is "one hundred twenty-two million, two hundred fifty-one thousand, three hundred twenty-one".