22203000000 has 294 divisors, whose sum is σ = 79582340708. Its totient is φ = 5918400000.

The previous prime is 22202999977. The next prime is 22203000019. The reversal of 22203000000 is 30222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 8998767 + ... + 9001233.

Almost surely, 2^22203000000 is an apocalyptic number.

22203000000 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 22203000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39791170354).

22203000000 is an abundant number, since it is smaller than the sum of its proper divisors (57379340708).

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

22203000000 is an frugal number, since it uses more digits than its factorization.

22203000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 22203000000 its reverse (30222), we get a palindrome (22203030222).

The spelling of 22203000000 in words is "twenty-two billion, two hundred three million", and thus it is an aban number.