122618333947 has 2 divisors, whose sum is σ = 122618333948. Its totient is φ = 122618333946.

The previous prime is 122618333939. The next prime is 122618334017. The reversal of 122618333947 is 749333816221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122618333947 - 2³ = 122618333939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122618333947.

It is not a weakly prime, because it can be changed into another prime (122618333917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61309166973 + 61309166974.

It is an arithmetic number, because the mean of its divisors is an integer number (61309166974).

Almost surely, 2^122618333947 is an apocalyptic number.

122618333947 is a deficient number, since it is larger than the sum of its proper divisors (1).

122618333947 is an equidigital number, since it uses as much as digits as its factorization.

122618333947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The spelling of 122618333947 in words is "one hundred twenty-two billion, six hundred eighteen million, three hundred thirty-three thousand, nine hundred forty-seven".