13222012 has 6 divisors (see below), whose sum is σ = 23138528. Its totient is φ = 6611004.

The previous prime is 13221997. The next prime is 13222031. The reversal of 13222012 is 21022231.

It is a junction number, because it is equal to n+sod(n) for n = 13221983 and 13222001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652748 + ... + 1652755.

Almost surely, 2^13222012 is an apocalyptic number.

It is an amenable number.

13222012 is a deficient number, since it is larger than the sum of its proper divisors (9916516).

13222012 is a wasteful number, since it uses less digits than its factorization.

13222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305507 (or 3305505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13222012 is about 3636.2084648711. The cubic root of 13222012 is about 236.4644449498.

Adding to 13222012 its reverse (21022231), we get a palindrome (34244243).

The spelling of 13222012 in words is "thirteen million, two hundred twenty-two thousand, twelve".