1101110221979 has 2 divisors, whose sum is σ = 1101110221980. Its totient is φ = 1101110221978.

The previous prime is 1101110221943. The next prime is 1101110222057. The reversal of 1101110221979 is 9791220111011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101110221979 - 2²⁰ = 1101109173403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101110224979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555110989 + 550555110990.

It is an arithmetic number, because the mean of its divisors is an integer number (550555110990).

Almost surely, 2^{1101110221979} is an apocalyptic number.

1101110221979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101110221979 is an equidigital number, since it uses as much as digits as its factorization.

1101110221979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 35.

The spelling of 1101110221979 in words is "one trillion, one hundred one billion, one hundred ten million, two hundred twenty-one thousand, nine hundred seventy-nine".