122439234569 has 2 divisors, whose sum is σ = 122439234570. Its totient is φ = 122439234568.

The previous prime is 122439234557. The next prime is 122439234571. The reversal of 122439234569 is 965432934221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97122606025 + 25316628544 = 311645^2 + 159112^2 .

It is a cyclic number.

It is not a de Polignac number, because 122439234569 - 2¹⁶ = 122439169033 is a prime.

It is a super-2 number, since 2×122439234569² (a number of 23 digits) contains 22 as substring.

Together with 122439234571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122439134569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61219617284 + 61219617285.

It is an arithmetic number, because the mean of its divisors is an integer number (61219617285).

Almost surely, 2^122439234569 is an apocalyptic number.

It is an amenable number.

122439234569 is a deficient number, since it is larger than the sum of its proper divisors (1).

122439234569 is an equidigital number, since it uses as much as digits as its factorization.

122439234569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 50.

The spelling of 122439234569 in words is "one hundred twenty-two billion, four hundred thirty-nine million, two hundred thirty-four thousand, five hundred sixty-nine".