12100100022 has 24 divisors (see below), whose sum is σ = 26711543664. Its totient is φ = 3957265104.

The previous prime is 12100100021. The next prime is 12100100053. The reversal of 12100100022 is 22000100121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12100099977 and 12100100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100100021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6340818 + ... + 6342725.

It is an arithmetic number, because the mean of its divisors is an integer number (1112980986).

Almost surely, 2^12100100022 is an apocalyptic number.

12100100022 is an abundant number, since it is smaller than the sum of its proper divisors (14611443642).

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

12100100022 is a wasteful number, since it uses less digits than its factorization.

12100100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683604 (or 12683601 counting only the distinct ones).

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

Adding to 12100100022 its reverse (22000100121), we get a palindrome (34100200143).

Subtracting 12100100022 from its reverse (22000100121), we obtain a palindrome (9900000099).

The spelling of 12100100022 in words is "twelve billion, one hundred million, one hundred thousand, twenty-two".