22030021200 has 480 divisors, whose sum is σ = 85820221440. Its totient is φ = 4760985600.

The previous prime is 22030021193. The next prime is 22030021213. The reversal of 22030021200 is 212003022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4261017 + ... + 4266183.

It is an arithmetic number, because the mean of its divisors is an integer number (178792128).

Almost surely, 2^22030021200 is an apocalyptic number.

22030021200 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 22030021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42910110720).

22030021200 is an abundant number, since it is smaller than the sum of its proper divisors (63790200240).

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

22030021200 is a wasteful number, since it uses less digits than its factorization.

22030021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235 (or 5224 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22030021200 its reverse (212003022), we get a palindrome (22242024222).

The spelling of 22030021200 in words is "twenty-two billion, thirty million, twenty-one thousand, two hundred".