22021232200 has 192 divisors, whose sum is σ = 59979553920. Its totient is φ = 7429632000.

The previous prime is 22021232153. The next prime is 22021232221. The reversal of 22021232200 is 223212022.

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, 2651254 + ... + 2659546.

It is an arithmetic number, because the mean of its divisors is an integer number (312393510).

Almost surely, 2^22021232200 is an apocalyptic number.

22021232200 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 22021232200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29989776960).

22021232200 is an abundant number, since it is smaller than the sum of its proper divisors (37958321720).

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

22021232200 is a wasteful number, since it uses less digits than its factorization.

22021232200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408 (or 8399 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22021232200 its reverse (223212022), we get a palindrome (22244444222).

The spelling of 22021232200 in words is "twenty-two billion, twenty-one million, two hundred thirty-two thousand, two hundred".