12213112302 has 24 divisors (see below), whose sum is σ = 26464811880. Its totient is φ = 4070565360.

The previous prime is 12213112169. The next prime is 12213112319. The reversal of 12213112302 is 20321131221.

12213112302 is a `hidden beast` number, since 122 + 1 + 311 + 230 + 2 = 666.

It is a super-2 number, since 2×12213112302² (a number of 21 digits) contains 22 as substring.

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 (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143052 + ... + 211872.

It is an arithmetic number, because the mean of its divisors is an integer number (1102700495).

Almost surely, 2^12213112302 is an apocalyptic number.

12213112302 is an abundant number, since it is smaller than the sum of its proper divisors (14251699578).

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

12213112302 is a wasteful number, since it uses less digits than its factorization.

12213112302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78688 (or 78685 counting only the distinct ones).

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

Adding to 12213112302 its reverse (20321131221), we get a palindrome (32534243523).

The spelling of 12213112302 in words is "twelve billion, two hundred thirteen million, one hundred twelve thousand, three hundred two".