12212021212012 has 12 divisors (see below), whose sum is σ = 21376962024880. Its totient is φ = 6104317776336.

The previous prime is 12212021212003. The next prime is 12212021212019. The reversal of 12212021212012 is 21021212021221.

It is not an unprimeable number, because it can be changed into a prime (12212021212019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423191187 + ... + 423220042.

Almost surely, 2^{12212021212012} is an apocalyptic number.

It is an amenable number.

12212021212012 is a deficient number, since it is larger than the sum of its proper divisors (9164940812868).

12212021212012 is a wasteful number, since it uses less digits than its factorization.

12212021212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846414840 (or 846414838 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12212021212012 its reverse (21021212021221), we get a palindrome (33233233233233).

The spelling of 12212021212012 in words is "twelve trillion, two hundred twelve billion, twenty-one million, two hundred twelve thousand, twelve".