21110112021219 has 12 divisors (see below), whose sum is σ = 30478504930776. Its totient is φ = 12990838166592.

The previous prime is 21110112021133. The next prime is 21110112021293. The reversal of 21110112021219 is 91212021101112.

It is not a de Polignac number, because 21110112021219 - 2²⁵ = 21110078466787 is a prime.

It is a super-2 number, since 2×21110112021219² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21110112091219) 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 in 11 ways as a sum of consecutive naturals, for example, 20818650402 + ... + 20818651415.

It is an arithmetic number, because the mean of its divisors is an integer number (2539875410898).

Almost surely, 2^{21110112021219} is an apocalyptic number.

21110112021219 is a deficient number, since it is larger than the sum of its proper divisors (9368392909557).

21110112021219 is a wasteful number, since it uses less digits than its factorization.

21110112021219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637301846 (or 41637301833 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 21110112021219 in words is "twenty-one trillion, one hundred ten billion, one hundred twelve million, twenty-one thousand, two hundred nineteen".