22112022021100 has 144 divisors (see below), whose sum is σ = 53054372490336. Its totient is φ = 7932372480000.

The previous prime is 22112022021079. The next prime is 22112022021143. The reversal of 22112022021100 is 112022021122.

It is a happy number.

It is a super-2 number, since 2×22112022021100² (a number of 27 digits) contains 22 as substring.

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, 30415444 + ... + 31133956.

It is an arithmetic number, because the mean of its divisors is an integer number (368433142294).

Almost surely, 2^{22112022021100} is an apocalyptic number.

22112022021100 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 22112022021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26527186245168).

22112022021100 is an abundant number, since it is smaller than the sum of its proper divisors (30942350469236).

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

22112022021100 is a wasteful number, since it uses less digits than its factorization.

22112022021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718916 (or 718909 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22112022021100 its reverse (112022021122), we get a palindrome (22224044042222).

The spelling of 22112022021100 in words is "twenty-two trillion, one hundred twelve billion, twenty-two million, twenty-one thousand, one hundred".