21103222320000 has 480 divisors, whose sum is σ = 77935130181480. Its totient is φ = 5475423744000.

The previous prime is 21103222319941. The next prime is 21103222320109. The reversal of 21103222320000 is 2322230112.

21103222320000 is a `hidden beast` number, since 2 + 110 + 322 + 232 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 26243919 + ... + 27036081.

Almost surely, 2^{21103222320000} is an apocalyptic number.

21103222320000 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 21103222320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38967565090740).

21103222320000 is an abundant number, since it is smaller than the sum of its proper divisors (56831907861480).

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

21103222320000 is an equidigital number, since it uses as much as digits as its factorization.

21103222320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792240 (or 792210 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21103222320000 its reverse (2322230112), we get a palindrome (21105544550112).

The spelling of 21103222320000 in words is "twenty-one trillion, one hundred three billion, two hundred twenty-two million, three hundred twenty thousand".