12020002112 has 14 divisors (see below), whose sum is σ = 23852191818. Its totient is φ = 6010001024.

The previous prime is 12020002087. The next prime is 12020002117. The reversal of 12020002112 is 21120002021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7655550016 + 4364452096 = 87496^2 + 66064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12020002093 and 12020002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020002117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93906203 + ... + 93906330.

It is an arithmetic number, because the mean of its divisors is an integer number (1703727987).

Almost surely, 2^12020002112 is an apocalyptic number.

It is an amenable number.

12020002112 is a deficient number, since it is larger than the sum of its proper divisors (11832189706).

12020002112 is an equidigital number, since it uses as much as digits as its factorization.

12020002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187812545 (or 187812535 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020002112 its reverse (21120002021), we get a palindrome (33140004133).

Subtracting 12020002112 from its reverse (21120002021), we obtain a palindrome (9099999909).

The spelling of 12020002112 in words is "twelve billion, twenty million, two thousand, one hundred twelve".