22111022100 has 36 divisors (see below), whose sum is σ = 63974558144. Its totient is φ = 5896272480.

The previous prime is 22111022093. The next prime is 22111022107. The reversal of 22111022100 is 122011122.

It is an interprime number because it is at equal distance from previous prime (22111022093) and next prime (22111022107).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111022107) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 36851404 + ... + 36852003.

Almost surely, 2^22111022100 is an apocalyptic number.

22111022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111022100 is an abundant number, since it is smaller than the sum of its proper divisors (41863536044).

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

22111022100 is a wasteful number, since it uses less digits than its factorization.

22111022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73703424 (or 73703417 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22111022100 its reverse (122011122), we get a palindrome (22233033222).

It can be divided in two parts, 22111022 and 100, that added together give a palindrome (22111122).

The spelling of 22111022100 in words is "twenty-two billion, one hundred eleven million, twenty-two thousand, one hundred".