22111010100 has 72 divisors (see below), whose sum is σ = 71082811520. Its totient is φ = 5896268640.

The previous prime is 22111010093. The next prime is 22111010113. The reversal of 22111010100 is 101011122.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4091932 + ... + 4097331.

Almost surely, 2^22111010100 is an apocalyptic number.

22111010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111010100 is an abundant number, since it is smaller than the sum of its proper divisors (48971801420).

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

22111010100 is a wasteful number, since it uses less digits than its factorization.

22111010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189286 (or 8189273 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 22111010100 its reverse (101011122), we get a palindrome (22212021222).

The spelling of 22111010100 in words is "twenty-two billion, one hundred eleven million, ten thousand, one hundred".