12020202112 has 64 divisors (see below), whose sum is σ = 25348672800. Its totient is φ = 5667830784.

The previous prime is 12020202097. The next prime is 12020202127. The reversal of 12020202112 is 21120202021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12020202097) and next prime (12020202127).

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 12020202092 and 12020202101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121963 + ... + 197269.

Almost surely, 2^12020202112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12674336400).

12020202112 is an abundant number, since it is smaller than the sum of its proper divisors (13328470688).

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

12020202112 is an equidigital number, since it uses as much as digits as its factorization.

12020202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75393 (or 75381 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12020202112 its reverse (21120202021), we get a palindrome (33140404133).

Subtracting 12020202112 from its reverse (21120202021), we obtain a palindrome (9099999909).

The spelling of 12020202112 in words is "twelve billion, twenty million, two hundred two thousand, one hundred twelve".