12222112212212 has 24 divisors (see below), whose sum is σ = 24718878636480. Its totient is φ = 5179193616960.

The previous prime is 12222112212209. The next prime is 12222112212223. The reversal of 12222112212212 is 21221221122221.

12222112212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 2452267214 + ... + 2452272197.

It is an arithmetic number, because the mean of its divisors is an integer number (1029953276520).

Almost surely, 2^{12222112212212} is an apocalyptic number.

It is an amenable number.

12222112212212 is an abundant number, since it is smaller than the sum of its proper divisors (12496766424268).

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

12222112212212 is a wasteful number, since it uses less digits than its factorization.

12222112212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904539511 (or 4904539509 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

Adding to 12222112212212 its reverse (21221221122221), we get a palindrome (33443333334433).

The spelling of 12222112212212 in words is "twelve trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, two hundred twelve".