22100100102 has 56 divisors (see below), whose sum is σ = 49777502184. Its totient is φ = 7355582784.

The previous prime is 22100100101. The next prime is 22100100107. The reversal of 22100100102 is 20100100122.

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 (22100100101) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 984718 + ... + 1006910.

Almost surely, 2^22100100102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22100100102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24888751092).

22100100102 is an abundant number, since it is smaller than the sum of its proper divisors (27677402082).

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

22100100102 is an equidigital number, since it uses as much as digits as its factorization.

22100100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22896 (or 22881 counting only the distinct ones).

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

Adding to 22100100102 its reverse (20100100122), we get a palindrome (42200200224).

The spelling of 22100100102 in words is "twenty-two billion, one hundred million, one hundred thousand, one hundred two".