12321020232212 has 24 divisors (see below), whose sum is σ = 22305453113160. Its totient is φ = 5948036635520.

The previous prime is 12321020232203. The next prime is 12321020232223. The reversal of 12321020232212 is 21223202012321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8589377623696 + 3731642608516 = 2930764^2 + 1931746^2 .

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 7 ways as a sum of consecutive naturals, for example, 21598478 + ... + 22161594.

It is an arithmetic number, because the mean of its divisors is an integer number (929393879715).

Almost surely, 2^{12321020232212} is an apocalyptic number.

It is an amenable number.

12321020232212 is a deficient number, since it is larger than the sum of its proper divisors (9984432880948).

12321020232212 is a wasteful number, since it uses less digits than its factorization.

12321020232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751771 (or 751769 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12321020232212 its reverse (21223202012321), we get a palindrome (33544222244533).

The spelling of 12321020232212 in words is "twelve trillion, three hundred twenty-one billion, twenty million, two hundred thirty-two thousand, two hundred twelve".