21222312022023 has 16 divisors (see below), whose sum is σ = 32444099170560. Its totient is φ = 12087533693376.

The previous prime is 21222312022019. The next prime is 21222312022033. The reversal of 21222312022023 is 32022021322212.

It is not a de Polignac number, because 21222312022023 - 2² = 21222312022019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21222312021984 and 21222312022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222312022033) 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, 1645899558 + ... + 1645912451.

It is an arithmetic number, because the mean of its divisors is an integer number (2027756198160).

Almost surely, 2^{21222312022023} is an apocalyptic number.

21222312022023 is a deficient number, since it is larger than the sum of its proper divisors (11221787148537).

21222312022023 is a wasteful number, since it uses less digits than its factorization.

21222312022023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291812326.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21222312022023 its reverse (32022021322212), we get a palindrome (53244333344235).

The spelling of 21222312022023 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred twelve million, twenty-two thousand, twenty-three".