122222252549 has 2 divisors, whose sum is σ = 122222252550. Its totient is φ = 122222252548.

The previous prime is 122222252531. The next prime is 122222252597. The reversal of 122222252549 is 945252222221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63394175524 + 58828077025 = 251782^2 + 242545^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222252549 - 2⁸ = 122222252293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222252249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111126274 + 61111126275.

It is an arithmetic number, because the mean of its divisors is an integer number (61111126275).

Almost surely, 2^122222252549 is an apocalyptic number.

It is an amenable number.

122222252549 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222252549 is an equidigital number, since it uses as much as digits as its factorization.

122222252549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 38.

The spelling of 122222252549 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred fifty-two thousand, five hundred forty-nine".