12220001100112 has 40 divisors (see below), whose sum is σ = 25846783180904. Its totient is φ = 5562740219904.

The previous prime is 12220001100071. The next prime is 12220001100113. The reversal of 12220001100112 is 21100110002221.

It can be written as a sum of positive squares in 4 ways, for example, as 3684464894016 + 8535536206096 = 1919496^2 + 2921564^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12220001100092 and 12220001100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220001100113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402382113 + ... + 402412480.

Almost surely, 2^{12220001100112} is an apocalyptic number.

It is an amenable number.

12220001100112 is an abundant number, since it is smaller than the sum of its proper divisors (13626782080792).

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

12220001100112 is a wasteful number, since it uses less digits than its factorization.

12220001100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804794687 (or 804794681 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12220001100112 its reverse (21100110002221), we get a palindrome (33320111102333).

The spelling of 12220001100112 in words is "twelve trillion, two hundred twenty billion, one million, one hundred thousand, one hundred twelve".