122255674247 has 4 divisors (see below), whose sum is σ = 139720770576. Its totient is φ = 104790577920.

The previous prime is 122255674243. The next prime is 122255674253. The reversal of 122255674247 is 742476552221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122255674247 - 2² = 122255674243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122255674243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8732548154 + ... + 8732548167.

It is an arithmetic number, because the mean of its divisors is an integer number (34930192644).

Almost surely, 2^122255674247 is an apocalyptic number.

122255674247 is a deficient number, since it is larger than the sum of its proper divisors (17465096329).

122255674247 is an equidigital number, since it uses as much as digits as its factorization.

122255674247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17465096328.

The product of its digits is 1881600, while the sum is 47.

The spelling of 122255674247 in words is "one hundred twenty-two billion, two hundred fifty-five million, six hundred seventy-four thousand, two hundred forty-seven".