12312066021322 has 12 divisors (see below), whose sum is σ = 18731876696658. Its totient is φ = 6069328315400.

The previous prime is 12312066021287. The next prime is 12312066021349. The reversal of 12312066021322 is 22312066021321.

It can be written as a sum of positive squares in only one way, i.e., 11605271035801 + 706794985521 = 3406651^2 + 840711^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610586329 + ... + 610606492.

Almost surely, 2^{12312066021322} is an apocalyptic number.

12312066021322 is a deficient number, since it is larger than the sum of its proper divisors (6419810675336).

12312066021322 is an equidigital number, since it uses as much as digits as its factorization.

12312066021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221192965 (or 1221192894 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Subtracting 12312066021322 from its reverse (22312066021321), we obtain a palindrome (9999999999999).

The spelling of 12312066021322 in words is "twelve trillion, three hundred twelve billion, sixty-six million, twenty-one thousand, three hundred twenty-two".