21223102123024 has 80 divisors (see below), whose sum is σ = 43565333743360. Its totient is φ = 9987863760000.

The previous prime is 21223102123007. The next prime is 21223102123037. The reversal of 21223102123024 is 42032120132212.

It is a self number, because there is not a number n which added to its sum of digits gives 21223102123024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36336499 + ... + 36915949.

It is an arithmetic number, because the mean of its divisors is an integer number (544566671792).

Almost surely, 2^{21223102123024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21223102123024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21782666871680).

21223102123024 is an abundant number, since it is smaller than the sum of its proper divisors (22342231620336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21223102123024 is a wasteful number, since it uses less digits than its factorization.

21223102123024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580260 (or 580254 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21223102123024 its reverse (42032120132212), we get a palindrome (63255222255236).

The spelling of 21223102123024 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred two million, one hundred twenty-three thousand, twenty-four".