22213120000 has 130 divisors (see below), whose sum is σ = 55514649938. Its totient is φ = 8884224000.

The previous prime is 22213119983. The next prime is 22213120009. The reversal of 22213120000 is 2131222.

It can be written as a sum of positive squares in 5 ways, for example, as 11437019136 + 10776100864 = 106944^2 + 103808^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213120009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2555662 + ... + 2564338.

Almost surely, 2^22213120000 is an apocalyptic number.

22213120000 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 22213120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27757324969).

22213120000 is an abundant number, since it is smaller than the sum of its proper divisors (33301529938).

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

22213120000 is an frugal number, since it uses more digits than its factorization.

22213120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721 (or 8684 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22213120000 its reverse (2131222), we get a palindrome (22215251222).

The spelling of 22213120000 in words is "twenty-two billion, two hundred thirteen million, one hundred twenty thousand".