21101122101179 has 2 divisors, whose sum is σ = 21101122101180. Its totient is φ = 21101122101178.

The previous prime is 21101122101139. The next prime is 21101122101203. The reversal of 21101122101179 is 97110122110112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21101122101179 - 2⁸ = 21101122100923 is a prime.

It is not a weakly prime, because it can be changed into another prime (21101122101139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550561050589 + 10550561050590.

It is an arithmetic number, because the mean of its divisors is an integer number (10550561050590).

Almost surely, 2^{21101122101179} is an apocalyptic number.

21101122101179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101122101179 is an equidigital number, since it uses as much as digits as its factorization.

21101122101179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 21101122101179 in words is "twenty-one trillion, one hundred one billion, one hundred twenty-two million, one hundred one thousand, one hundred seventy-nine".