12212112110012 has 24 divisors (see below), whose sum is σ = 21513662129232. Its totient is φ = 6065428089600.

The previous prime is 12212112109937. The next prime is 12212112110021. The reversal of 12212112110012 is 21001121121221.

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, 8935118 + ... + 10210805.

It is an arithmetic number, because the mean of its divisors is an integer number (896402588718).

Almost surely, 2^{12212112110012} is an apocalyptic number.

It is an amenable number.

12212112110012 is a deficient number, since it is larger than the sum of its proper divisors (9301550019220).

12212112110012 is a wasteful number, since it uses less digits than its factorization.

12212112110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19146989 (or 19146987 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12212112110012 its reverse (21001121121221), we get a palindrome (33213233231233).

The spelling of 12212112110012 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, one hundred ten thousand, twelve".