22111122101200 has 120 divisors (see below), whose sum is σ = 57953514862656. Its totient is φ = 8040092544000.

The previous prime is 22111122101171. The next prime is 22111122101209. The reversal of 22111122101200 is 210122111122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111122101209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132228844 + ... + 132395956.

Almost surely, 2^{22111122101200} is an apocalyptic number.

22111122101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111122101200 is an abundant number, since it is smaller than the sum of its proper divisors (35842392761456).

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

22111122101200 is a wasteful number, since it uses less digits than its factorization.

22111122101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197213 (or 197202 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22111122101200 its reverse (210122111122), we get a palindrome (22321244212322).

The spelling of 22111122101200 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred one thousand, two hundred".