12212112222012 has 48 divisors (see below), whose sum is σ = 28576022921600. Its totient is φ = 4059122753088.

The previous prime is 12212112221993. The next prime is 12212112222043. The reversal of 12212112222012 is 21022221121221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212112222012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27364239 + ... + 27806937.

Almost surely, 2^{12212112222012} is an apocalyptic number.

12212112222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212112222012 is an abundant number, since it is smaller than the sum of its proper divisors (16363910699588).

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

12212112222012 is a wasteful number, since it uses less digits than its factorization.

12212112222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449242 (or 449240 counting only the distinct ones).

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

Adding to 12212112222012 its reverse (21022221121221), we get a palindrome (33234333343233).

The spelling of 12212112222012 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, twelve".