122227789 has 2 divisors, whose sum is σ = 122227790. Its totient is φ = 122227788.

The previous prime is 122227783. The next prime is 122227793. The reversal of 122227789 is 987722221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119137225 + 3090564 = 10915^2 + 1758^2 .

It is a cyclic number.

It is not a de Polignac number, because 122227789 - 2⁵ = 122227757 is a prime.

It is a plaindrome in base 10.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122227783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61113894 + 61113895.

It is an arithmetic number, because the mean of its divisors is an integer number (61113895).

Almost surely, 2^122227789 is an apocalyptic number.

It is an amenable number.

122227789 is a deficient number, since it is larger than the sum of its proper divisors (1).

122227789 is an equidigital number, since it uses as much as digits as its factorization.

122227789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 122227789 is about 11055.6677319825. The cubic root of 122227789 is about 496.2760519457.

The spelling of 122227789 in words is "one hundred twenty-two million, two hundred twenty-seven thousand, seven hundred eighty-nine".