12012211222212 has 24 divisors (see below), whose sum is σ = 28028882508256. Its totient is φ = 4004014742208.

The previous prime is 12012211222183. The next prime is 12012211222237. The reversal of 12012211222212 is 21222211221021.

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, 6054313 + ... + 7789680.

Almost surely, 2^{12012211222212} is an apocalyptic number.

12012211222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012211222212 is an abundant number, since it is smaller than the sum of its proper divisors (16016671286044).

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

12012211222212 is a wasteful number, since it uses less digits than its factorization.

12012211222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13916307 (or 13916305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12012211222212 its reverse (21222211221021), we get a palindrome (33234422443233).

The spelling of 12012211222212 in words is "twelve trillion, twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".