12213004156 has 24 divisors (see below), whose sum is σ = 22143672320. Its totient is φ = 5887695600.

The previous prime is 12213004127. The next prime is 12213004157. The reversal of 12213004156 is 65140031221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12213004156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213004157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148116 + ... + 215323.

Almost surely, 2^12213004156 is an apocalyptic number.

It is an amenable number.

12213004156 is a deficient number, since it is larger than the sum of its proper divisors (9930668164).

12213004156 is a wasteful number, since it uses less digits than its factorization.

12213004156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363745 (or 363743 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12213004156 its reverse (65140031221), we get a palindrome (77353035377).

The spelling of 12213004156 in words is "twelve billion, two hundred thirteen million, four thousand, one hundred fifty-six".