220001121099979 has 2 divisors, whose sum is σ = 220001121099980. Its totient is φ = 220001121099978.

The previous prime is 220001121099973. The next prime is 220001121100043. The reversal of 220001121099979 is 979990121100022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220001121099979 - 2³ = 220001121099971 is a prime.

It is not a weakly prime, because it can be changed into another prime (220001121099971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000560549989 + 110000560549990.

It is an arithmetic number, because the mean of its divisors is an integer number (110000560549990).

Almost surely, 2^{220001121099979} is an apocalyptic number.

220001121099979 is a deficient number, since it is larger than the sum of its proper divisors (1).

220001121099979 is an equidigital number, since it uses as much as digits as its factorization.

220001121099979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 52.

The spelling of 220001121099979 in words is "two hundred twenty trillion, one billion, one hundred twenty-one million, ninety-nine thousand, nine hundred seventy-nine".