22111030112100 has 72 divisors (see below), whose sum is σ = 63978062621088. Its totient is φ = 5895953760000.

The previous prime is 22111030112099. The next prime is 22111030112113. The reversal of 22111030112100 is 121103011122.

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 22111030112100.

It is an unprimeable number.

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, 3540475 + ... + 7533725.

Almost surely, 2^{22111030112100} is an apocalyptic number.

22111030112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111030112100 is an abundant number, since it is smaller than the sum of its proper divisors (41867032508988).

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

22111030112100 is a wasteful number, since it uses less digits than its factorization.

22111030112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011725 (or 4011718 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 22111030112100 its reverse (121103011122), we get a palindrome (22232133123222).

The spelling of 22111030112100 in words is "twenty-two trillion, one hundred eleven billion, thirty million, one hundred twelve thousand, one hundred".