122661044939 has 2 divisors, whose sum is σ = 122661044940. Its totient is φ = 122661044938.

The previous prime is 122661044929. The next prime is 122661045007. The reversal of 122661044939 is 939440166221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122661044939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122661044893 and 122661044902.

It is not a weakly prime, because it can be changed into another prime (122661044929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61330522469 + 61330522470.

It is an arithmetic number, because the mean of its divisors is an integer number (61330522470).

Almost surely, 2^122661044939 is an apocalyptic number.

122661044939 is a deficient number, since it is larger than the sum of its proper divisors (1).

122661044939 is an equidigital number, since it uses as much as digits as its factorization.

122661044939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 122661044939 in words is "one hundred twenty-two billion, six hundred sixty-one million, forty-four thousand, nine hundred thirty-nine".