12020120212 has 12 divisors (see below), whose sum is σ = 21035990836. Its totient is φ = 6009837120.

The previous prime is 12020120171. The next prime is 12020120219. The reversal of 12020120212 is 21202102021.

It is a happy number.

12020120212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2822159376 + 9197960836 = 53124^2 + 95906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12020120192 and 12020120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149512 + ... + 215392.

Almost surely, 2^12020120212 is an apocalyptic number.

It is an amenable number.

12020120212 is a deficient number, since it is larger than the sum of its proper divisors (9015870624).

12020120212 is a wasteful number, since it uses less digits than its factorization.

12020120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111498 (or 111496 counting only the distinct ones).

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

Adding to 12020120212 its reverse (21202102021), we get a palindrome (33222222233).

The spelling of 12020120212 in words is "twelve billion, twenty million, one hundred twenty thousand, two hundred twelve".