21111202222023 has 8 divisors (see below), whose sum is σ = 28149794776048. Its totient is φ = 14073372241344.

The previous prime is 21111202222013. The next prime is 21111202222027. The reversal of 21111202222023 is 32022220211112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21111202222023 - 2²⁴ = 21111185444807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21111202222027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190578736 + ... + 190689477.

It is an arithmetic number, because the mean of its divisors is an integer number (3518724347006).

Almost surely, 2^{21111202222023} is an apocalyptic number.

21111202222023 is a deficient number, since it is larger than the sum of its proper divisors (7038592554025).

21111202222023 is a wasteful number, since it uses less digits than its factorization.

21111202222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381286673.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21111202222023 its reverse (32022220211112), we get a palindrome (53133422433135).

The spelling of 21111202222023 in words is "twenty-one trillion, one hundred eleven billion, two hundred two million, two hundred twenty-two thousand, twenty-three".