22001332200 has 192 divisors, whose sum is σ = 70227648000. Its totient is φ = 5693783040.

The previous prime is 22001332181. The next prime is 22001332217. The reversal of 22001332200 is 223310022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22001332200.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10632766 + ... + 10634834.

It is an arithmetic number, because the mean of its divisors is an integer number (365769000).

Almost surely, 2^22001332200 is an apocalyptic number.

22001332200 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 22001332200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35113824000).

22001332200 is an abundant number, since it is smaller than the sum of its proper divisors (48226315800).

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

22001332200 is a wasteful number, since it uses less digits than its factorization.

22001332200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22001332200 its reverse (223310022), we get a palindrome (22224642222).

The spelling of 22001332200 in words is "twenty-two billion, one million, three hundred thirty-two thousand, two hundred".