122081599 has 2 divisors, whose sum is σ = 122081600. Its totient is φ = 122081598.

The previous prime is 122081579. The next prime is 122081657. The reversal of 122081599 is 995180221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122081599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122081549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61040799 + 61040800.

It is an arithmetic number, because the mean of its divisors is an integer number (61040800).

Almost surely, 2^122081599 is an apocalyptic number.

122081599 is a deficient number, since it is larger than the sum of its proper divisors (1).

122081599 is an equidigital number, since it uses as much as digits as its factorization.

122081599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 122081599 is about 11049.0542129180. The cubic root of 122081599 is about 496.0781167613.

The spelling of 122081599 in words is "one hundred twenty-two million, eighty-one thousand, five hundred ninety-nine".