21111011112179 has 2 divisors, whose sum is σ = 21111011112180. Its totient is φ = 21111011112178.

The previous prime is 21111011112137. The next prime is 21111011112221. The reversal of 21111011112179 is 97121111011112.

It is a balanced prime because it is at equal distance from previous prime (21111011112137) and next prime (21111011112221).

It is a cyclic number.

It is not a de Polignac number, because 21111011112179 - 2²⁰ = 21111010063603 is a prime.

It is not a weakly prime, because it can be changed into another prime (21111011612179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555505556089 + 10555505556090.

It is an arithmetic number, because the mean of its divisors is an integer number (10555505556090).

Almost surely, 2^{21111011112179} is an apocalyptic number.

21111011112179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21111011112179 is an equidigital number, since it uses as much as digits as its factorization.

21111011112179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 29.

The spelling of 21111011112179 in words is "twenty-one trillion, one hundred eleven billion, eleven million, one hundred twelve thousand, one hundred seventy-nine".