22221130000 has 100 divisors (see below), whose sum is σ = 54945411840. Its totient is φ = 8699152000.

The previous prime is 22221129991. The next prime is 22221130003. The reversal of 22221130000 is 3112222.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (22221130003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 446361 + ... + 493639.

Almost surely, 2^22221130000 is an apocalyptic number.

22221130000 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 22221130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27472705920).

22221130000 is an abundant number, since it is smaller than the sum of its proper divisors (32724281840).

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

22221130000 is an equidigital number, since it uses as much as digits as its factorization.

22221130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47354 (or 47333 counting only the distinct ones).

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

Adding to 22221130000 its reverse (3112222), we get a palindrome (22224242222).

The spelling of 22221130000 in words is "twenty-two billion, two hundred twenty-one million, one hundred thirty thousand".