12002020112 has 10 divisors (see below), whose sum is σ = 23253913998. Its totient is φ = 6001010048.

The previous prime is 12002020097. The next prime is 12002020123. The reversal of 12002020112 is 21102020021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6027348496 + 5974671616 = 77636^2 + 77296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12002020093 and 12002020102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375063113 + ... + 375063144.

Almost surely, 2^12002020112 is an apocalyptic number.

It is an amenable number.

12002020112 is a deficient number, since it is larger than the sum of its proper divisors (11251893886).

12002020112 is an equidigital number, since it uses as much as digits as its factorization.

12002020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750126265 (or 750126259 counting only the distinct ones).

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

Adding to 12002020112 its reverse (21102020021), we get a palindrome (33104040133).

Subtracting 12002020112 from its reverse (21102020021), we obtain a palindrome (9099999909).

The spelling of 12002020112 in words is "twelve billion, two million, twenty thousand, one hundred twelve".