22123201320000 has 840 divisors, whose sum is σ = 88780357091712. Its totient is φ = 5218214400000.

The previous prime is 22123201319971. The next prime is 22123201320013. The reversal of 22123201320000 is 2310232122.

22123201320000 is a `hidden beast` number, since 2 + 21 + 2 + 320 + 1 + 320 + 0 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 146444505 + ... + 146595495.

Almost surely, 2^{22123201320000} is an apocalyptic number.

22123201320000 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 22123201320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44390178545856).

22123201320000 is an abundant number, since it is smaller than the sum of its proper divisors (66657155771712).

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

22123201320000 is a wasteful number, since it uses less digits than its factorization.

22123201320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151077 (or 151049 counting only the distinct ones).

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

Adding to 22123201320000 its reverse (2310232122), we get a palindrome (22125511552122).

The spelling of 22123201320000 in words is "twenty-two trillion, one hundred twenty-three billion, two hundred one million, three hundred twenty thousand".