21000222000023 has 32 divisors (see below), whose sum is σ = 24411555225600. Its totient is φ = 17693765421696.

The previous prime is 21000222000019. The next prime is 21000222000059. The reversal of 21000222000023 is 32000022200012.

It is not a de Polignac number, because 21000222000023 - 2² = 21000222000019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21000221999971 and 21000222000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000222000073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636103265 + ... + 636136277.

It is an arithmetic number, because the mean of its divisors is an integer number (762861100800).

Almost surely, 2^{21000222000023} is an apocalyptic number.

21000222000023 is a deficient number, since it is larger than the sum of its proper divisors (3411333225577).

21000222000023 is a wasteful number, since it uses less digits than its factorization.

21000222000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38151.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21000222000023 its reverse (32000022200012), we get a palindrome (53000244200035).

The spelling of 21000222000023 in words is "twenty-one trillion, two hundred twenty-two million, twenty-three", and thus it is an aban number.