22021111120100 has 72 divisors (see below), whose sum is σ = 48535821216960. Its totient is φ = 8670393198720.

The previous prime is 22021111120087. The next prime is 22021111120109. The reversal of 22021111120100 is 102111112022.

22021111120100 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (22021111120109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7591382 + ... + 10083218.

Almost surely, 2^{22021111120100} is an apocalyptic number.

22021111120100 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 22021111120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24267910608480).

22021111120100 is an abundant number, since it is smaller than the sum of its proper divisors (26514710096860).

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

22021111120100 is a wasteful number, since it uses less digits than its factorization.

22021111120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493237 (or 2493230 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22021111120100 its reverse (102111112022), we get a palindrome (22123222232122).

The spelling of 22021111120100 in words is "twenty-two trillion, twenty-one billion, one hundred eleven million, one hundred twenty thousand, one hundred".