22100001222200 has 144 divisors (see below), whose sum is σ = 56482337919840. Its totient is φ = 8035787865600.

The previous prime is 22100001222193. The next prime is 22100001222217. The reversal of 22100001222200 is 222210000122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 487437932 + ... + 487483268.

Almost surely, 2^{22100001222200} is an apocalyptic number.

22100001222200 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 22100001222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28241168959920).

22100001222200 is an abundant number, since it is smaller than the sum of its proper divisors (34382336697640).

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

22100001222200 is a wasteful number, since it uses less digits than its factorization.

22100001222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65518 (or 65498 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22100001222200 its reverse (222210000122), we get a palindrome (22322211222322).

The spelling of 22100001222200 in words is "twenty-two trillion, one hundred billion, one million, two hundred twenty-two thousand, two hundred".