12221022022012 has 6 divisors (see below), whose sum is σ = 21386788538528. Its totient is φ = 6110511011004.

The previous prime is 12221022021991. The next prime is 12221022022037. The reversal of 12221022022012 is 21022022012221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527627752748 + ... + 1527627752755.

Almost surely, 2^{12221022022012} is an apocalyptic number.

It is an amenable number.

12221022022012 is a deficient number, since it is larger than the sum of its proper divisors (9165766516516).

12221022022012 is a wasteful number, since it uses less digits than its factorization.

12221022022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055255505507 (or 3055255505505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12221022022012 its reverse (21022022012221), we get a palindrome (33243044034233).

The spelling of 12221022022012 in words is "twelve trillion, two hundred twenty-one billion, twenty-two million, twenty-two thousand, twelve".