23221401451100 has 72 divisors (see below), whose sum is σ = 51489669325248. Its totient is φ = 9086145952000.

The previous prime is 23221401451091. The next prime is 23221401451103. The reversal of 23221401451100 is 115410412232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23221401451100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221401451103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7635194 + ... + 10234206.

It is an arithmetic number, because the mean of its divisors is an integer number (715134296184).

Almost surely, 2^{23221401451100} is an apocalyptic number.

23221401451100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23221401451100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25744834662624).

23221401451100 is an abundant number, since it is smaller than the sum of its proper divisors (28268267874148).

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

23221401451100 is a wasteful number, since it uses less digits than its factorization.

23221401451100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600975 (or 2600968 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 23221401451100 its reverse (115410412232), we get a palindrome (23336811863332).

The spelling of 23221401451100 in words is "twenty-three trillion, two hundred twenty-one billion, four hundred one million, four hundred fifty-one thousand, one hundred".