122255569 has 2 divisors, whose sum is σ = 122255570. Its totient is φ = 122255568.

The previous prime is 122255533. The next prime is 122255587. The reversal of 122255569 is 965552221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112614544 + 9641025 = 10612^2 + 3105^2 .

It is a cyclic number.

It is not a de Polignac number, because 122255569 - 2⁹ = 122255057 is a prime.

It is a super-2 number, since 2×122255569² = 29892848303027522, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (122255669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61127784 + 61127785.

It is an arithmetic number, because the mean of its divisors is an integer number (61127785).

Almost surely, 2^122255569 is an apocalyptic number.

It is an amenable number.

122255569 is a deficient number, since it is larger than the sum of its proper divisors (1).

122255569 is an equidigital number, since it uses as much as digits as its factorization.

122255569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 122255569 is about 11056.9240297652. The cubic root of 122255569 is about 496.3136470635.

The spelling of 122255569 in words is "one hundred twenty-two million, two hundred fifty-five thousand, five hundred sixty-nine".