120221122099979 has 2 divisors, whose sum is σ = 120221122099980. Its totient is φ = 120221122099978.

The previous prime is 120221122099961. The next prime is 120221122100041. The reversal of 120221122099979 is 979990221122021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120221122099979 is a prime.

It is not a weakly prime, because it can be changed into another prime (120221122029979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110561049989 + 60110561049990.

It is an arithmetic number, because the mean of its divisors is an integer number (60110561049990).

Almost surely, 2^{120221122099979} is an apocalyptic number.

120221122099979 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221122099979 is an equidigital number, since it uses as much as digits as its factorization.

120221122099979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 120221122099979 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-two million, ninety-nine thousand, nine hundred seventy-nine".