12222212013 has 16 divisors (see below), whose sum is σ = 19753070400. Its totient is φ = 7407401040.

The previous prime is 12222212003. The next prime is 12222212017. The reversal of 12222212013 is 31021222221.

It is not a de Polignac number, because 12222212013 - 2¹² = 12222207917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222212017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20575818 + ... + 20576411.

It is an arithmetic number, because the mean of its divisors is an integer number (1234566900).

Almost surely, 2^12222212013 is an apocalyptic number.

It is an amenable number.

12222212013 is a deficient number, since it is larger than the sum of its proper divisors (7530858387).

12222212013 is a wasteful number, since it uses less digits than its factorization.

12222212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41152249 (or 41152243 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12222212013 its reverse (31021222221), we get a palindrome (43243434234).

The spelling of 12222212013 in words is "twelve billion, two hundred twenty-two million, two hundred twelve thousand, thirteen".