122147434247 has 4 divisors (see below), whose sum is σ = 129332577456. Its totient is φ = 114962291040.

The previous prime is 122147434231. The next prime is 122147434261. The reversal of 122147434247 is 742434741221.

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

It is a cyclic number.

It is not a de Polignac number, because 122147434247 - 2⁴ = 122147434231 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 (122147434447) 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, 3592571579 + ... + 3592571612.

It is an arithmetic number, because the mean of its divisors is an integer number (32333144364).

Almost surely, 2^122147434247 is an apocalyptic number.

122147434247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

122147434247 is a deficient number, since it is larger than the sum of its proper divisors (7185143209).

122147434247 is an equidigital number, since it uses as much as digits as its factorization.

122147434247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185143208.

The product of its digits is 301056, while the sum is 41.

The spelling of 122147434247 in words is "one hundred twenty-two billion, one hundred forty-seven million, four hundred thirty-four thousand, two hundred forty-seven".