12212311302 has 32 divisors (see below), whose sum is σ = 27225768960. Its totient is φ = 4057675560.

The previous prime is 12212311289. The next prime is 12212311379. The reversal of 12212311302 is 20311321221.

12212311302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346798 + ... + 380385.

It is an arithmetic number, because the mean of its divisors is an integer number (850805280).

Almost surely, 2^12212311302 is an apocalyptic number.

12212311302 is an abundant number, since it is smaller than the sum of its proper divisors (15013457658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212311302 is a wasteful number, since it uses less digits than its factorization.

12212311302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727505 (or 727499 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12212311302 its reverse (20311321221), we get a palindrome (32523632523).

The spelling of 12212311302 in words is "twelve billion, two hundred twelve million, three hundred eleven thousand, three hundred two".