22031100000 has 864 divisors, whose sum is σ = 96738183360. Its totient is φ = 4631040000.

The previous prime is 22031099939. The next prime is 22031100061. The reversal of 22031100000 is 113022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22031099939) and next prime (22031100061).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 81899866 + ... + 81900134.

It is an arithmetic number, because the mean of its divisors is an integer number (111965490).

Almost surely, 2^22031100000 is an apocalyptic number.

22031100000 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 22031100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48369091680).

22031100000 is an abundant number, since it is smaller than the sum of its proper divisors (74707083360).

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

22031100000 is a wasteful number, since it uses less digits than its factorization.

22031100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 22031100000 its reverse (113022), we get a palindrome (22031213022).

The spelling of 22031100000 in words is "twenty-two billion, thirty-one million, one hundred thousand".