122226389 has 2 divisors, whose sum is σ = 122226390. Its totient is φ = 122226388.

The previous prime is 122226353. The next prime is 122226437. The reversal of 122226389 is 983622221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107288164 + 14938225 = 10358^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 122226389 - 2²⁴ = 105449173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122226319) 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, 61113194 + 61113195.

It is an arithmetic number, because the mean of its divisors is an integer number (61113195).

Almost surely, 2^122226389 is an apocalyptic number.

It is an amenable number.

122226389 is a deficient number, since it is larger than the sum of its proper divisors (1).

122226389 is an equidigital number, since it uses as much as digits as its factorization.

122226389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 122226389 is about 11055.6044158608. The cubic root of 122226389 is about 496.2741571525.

The spelling of 122226389 in words is "one hundred twenty-two million, two hundred twenty-six thousand, three hundred eighty-nine".