21222022110200 has 96 divisors (see below), whose sum is σ = 49907837836800. Its totient is φ = 8391715368960.

The previous prime is 21222022110197. The next prime is 21222022110221. The reversal of 21222022110200 is 201122022212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7429916 + ... + 9881684.

It is an arithmetic number, because the mean of its divisors is an integer number (519873310800).

Almost surely, 2^{21222022110200} is an apocalyptic number.

21222022110200 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 21222022110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24953918918400).

21222022110200 is an abundant number, since it is smaller than the sum of its proper divisors (28685815726600).

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

21222022110200 is a wasteful number, since it uses less digits than its factorization.

21222022110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452281 (or 2452272 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21222022110200 its reverse (201122022212), we get a palindrome (21423144132412).

The spelling of 21222022110200 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-two million, one hundred ten thousand, two hundred".