12210210112 has 28 divisors (see below), whose sum is σ = 25065144180. Its totient is φ = 5894583296.

The previous prime is 12210210109. The next prime is 12210210113. The reversal of 12210210112 is 21101201221.

It can be written as a sum of positive squares in 2 ways, for example, as 5129997376 + 7080212736 = 71624^2 + 84144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12210210092 and 12210210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210210113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3287533 + ... + 3291244.

Almost surely, 2^12210210112 is an apocalyptic number.

It is an amenable number.

12210210112 is an abundant number, since it is smaller than the sum of its proper divisors (12854934068).

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

12210210112 is an equidigital number, since it uses as much as digits as its factorization.

12210210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578818 (or 6578808 counting only the distinct ones).

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

Adding to 12210210112 its reverse (21101201221), we get a palindrome (33311411333).

The spelling of 12210210112 in words is "twelve billion, two hundred ten million, two hundred ten thousand, one hundred twelve".