21222312022024 has 16 divisors (see below), whose sum is σ = 39791969294400. Its totient is φ = 10611120210192.

The previous prime is 21222312022019. The next prime is 21222312022033. The reversal of 21222312022024 is 42022021322212.

It is a super-2 number, since 2×21222312022024² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21222312022024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866292 + ... + 6776995.

It is an arithmetic number, because the mean of its divisors is an integer number (2486998080900).

Almost surely, 2^{21222312022024} is an apocalyptic number.

It is an amenable number.

21222312022024 is a deficient number, since it is larger than the sum of its proper divisors (18569657272376).

21222312022024 is a wasteful number, since it uses less digits than its factorization.

21222312022024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950212 (or 8950208 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21222312022024 its reverse (42022021322212), we get a palindrome (63244333344236).

The spelling of 21222312022024 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred twelve million, twenty-two thousand, twenty-four".