22110002100 has 54 divisors (see below), whose sum is σ = 69302576070. Its totient is φ = 5896000320.

The previous prime is 22110002041. The next prime is 22110002107. The reversal of 22110002100 is 120001122.

It can be written as a sum of positive squares in 3 ways, for example, as 107619876 + 22002382224 = 10374^2 + 148332^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110002107) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12282435 + ... + 12284234.

Almost surely, 2^22110002100 is an apocalyptic number.

22110002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22110002100 is an abundant number, since it is smaller than the sum of its proper divisors (47192573970).

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

22110002100 is a wasteful number, since it uses less digits than its factorization.

22110002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24566689 (or 24566679 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22110002100 its reverse (120001122), we get a palindrome (22230003222).

The spelling of 22110002100 in words is "twenty-two billion, one hundred ten million, two thousand, one hundred".