21112222222023 has 16 divisors (see below), whose sum is σ = 28190118138240. Its totient is φ = 14054571669024.

The previous prime is 21112222222019. The next prime is 21112222222057. The reversal of 21112222222023 is 32022222221112.

It is not a de Polignac number, because 21112222222023 - 2² = 21112222222019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21112222221984 and 21112222222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112222222073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90074140 + ... + 90308222.

It is an arithmetic number, because the mean of its divisors is an integer number (1761882383640).

Almost surely, 2^{21112222222023} is an apocalyptic number.

21112222222023 is a deficient number, since it is larger than the sum of its proper divisors (7077895916217).

21112222222023 is a wasteful number, since it uses less digits than its factorization.

21112222222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277198.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21112222222023 its reverse (32022222221112), we get a palindrome (53134444443135).

The spelling of 21112222222023 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-three".