12222022012 has 6 divisors (see below), whose sum is σ = 21388538528. Its totient is φ = 6111011004.

The previous prime is 12222022009. The next prime is 12222022039. The reversal of 12222022012 is 21022022221.

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, 1527752748 + ... + 1527752755.

Almost surely, 2^12222022012 is an apocalyptic number.

It is an amenable number.

12222022012 is a deficient number, since it is larger than the sum of its proper divisors (9166516516).

12222022012 is a wasteful number, since it uses less digits than its factorization.

12222022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055505507 (or 3055505505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222022012 its reverse (21022022221), we get a palindrome (33244044233).

The spelling of 12222022012 in words is "twelve billion, two hundred twenty-two million, twenty-two thousand, twelve".