12012120212 has 24 divisors (see below), whose sum is σ = 21164735592. Its totient is φ = 5965184000.

The previous prime is 12012120203. The next prime is 12012120229. The reversal of 12012120212 is 21202121021.

It can be written as a sum of positive squares in 4 ways, for example, as 7526603536 + 4485516676 = 86756^2 + 66974^2 .

It is a congruent number.

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, 357662 + ... + 389802.

It is an arithmetic number, because the mean of its divisors is an integer number (881863983).

Almost surely, 2^12012120212 is an apocalyptic number.

It is an amenable number.

12012120212 is a deficient number, since it is larger than the sum of its proper divisors (9152615380).

12012120212 is a wasteful number, since it uses less digits than its factorization.

12012120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32779 (or 32777 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012120212 its reverse (21202121021), we get a palindrome (33214241233).

The spelling of 12012120212 in words is "twelve billion, twelve million, one hundred twenty thousand, two hundred twelve".