12212122222012 has 12 divisors (see below), whose sum is σ = 22108152298680. Its totient is φ = 5895507279536.

The previous prime is 12212122222009. The next prime is 12212122222021. The reversal of 12212122222012 is 21022222121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52638457738 + ... + 52638457969.

It is an arithmetic number, because the mean of its divisors is an integer number (1842346024890).

Almost surely, 2^{12212122222012} is an apocalyptic number.

It is an amenable number.

12212122222012 is a deficient number, since it is larger than the sum of its proper divisors (9896030076668).

12212122222012 is a wasteful number, since it uses less digits than its factorization.

12212122222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105276915740 (or 105276915738 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12212122222012 its reverse (21022222121221), we get a palindrome (33234344343233).

The spelling of 12212122222012 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, twelve".