122255447 has 2 divisors, whose sum is σ = 122255448. Its totient is φ = 122255446.

The previous prime is 122255383. The next prime is 122255459. The reversal of 122255447 is 744552221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122255447 - 2⁶ = 122255383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122255477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61127723 + 61127724.

It is an arithmetic number, because the mean of its divisors is an integer number (61127724).

Almost surely, 2^122255447 is an apocalyptic number.

122255447 is a deficient number, since it is larger than the sum of its proper divisors (1).

122255447 is an equidigital number, since it uses as much as digits as its factorization.

122255447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 32.

The square root of 122255447 is about 11056.9185128588. The cubic root of 122255447 is about 496.3134819714.

The spelling of 122255447 in words is "one hundred twenty-two million, two hundred fifty-five thousand, four hundred forty-seven".