22111210012200 has 192 divisors, whose sum is σ = 70488436844160. Its totient is φ = 5729536465920.

The previous prime is 22111210012189. The next prime is 22111210012217. The reversal of 22111210012200 is 221001211122.

It is a super-2 number, since 2×22111210012200² (a number of 27 digits) contains 22 as substring.

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 22111210012200.

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, 16516357 + ... + 17804843.

It is an arithmetic number, because the mean of its divisors is an integer number (367127275230).

Almost surely, 2^{22111210012200} is an apocalyptic number.

22111210012200 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 22111210012200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35244218422080).

22111210012200 is an abundant number, since it is smaller than the sum of its proper divisors (48377226831960).

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

22111210012200 is a wasteful number, since it uses less digits than its factorization.

22111210012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289316 (or 1289307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111210012200 its reverse (221001211122), we get a palindrome (22332211223322).

The spelling of 22111210012200 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, twelve thousand, two hundred".