1222123013212 has 12 divisors (see below), whose sum is σ = 2138738001400. Its totient is φ = 611055012816.

The previous prime is 1222123013173. The next prime is 1222123013213. The reversal of 1222123013212 is 2123103212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222123013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186962 + ... + 1962937.

Almost surely, 2^{1222123013212} is an apocalyptic number.

It is an amenable number.

1222123013212 is a deficient number, since it is larger than the sum of its proper divisors (916614988188).

1222123013212 is a wasteful number, since it uses less digits than its factorization.

1222123013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246900 (or 3246898 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1222123013212 its reverse (2123103212221), we get a palindrome (3345226225433).

The spelling of 1222123013212 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-three million, thirteen thousand, two hundred twelve".