21110012102223 has 12 divisors (see below), whose sum is σ = 33264261494568. Its totient is φ = 12793946728560.

The previous prime is 21110012102219. The next prime is 21110012102233. The reversal of 21110012102223 is 32220121001112.

It is not a de Polignac number, because 21110012102223 - 2² = 21110012102219 is a prime.

It is a super-2 number, since 2×21110012102223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110012102196 and 21110012102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110012102233) 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, 106616222640 + ... + 106616222837.

It is an arithmetic number, because the mean of its divisors is an integer number (2772021791214).

Almost surely, 2^{21110012102223} is an apocalyptic number.

21110012102223 is a deficient number, since it is larger than the sum of its proper divisors (12154249392345).

21110012102223 is a wasteful number, since it uses less digits than its factorization.

21110012102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213232445494 (or 213232445491 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21110012102223 its reverse (32220121001112), we get a palindrome (53330133103335).

The spelling of 21110012102223 in words is "twenty-one trillion, one hundred ten billion, twelve million, one hundred two thousand, two hundred twenty-three".