12210212302331 has 4 divisors (see below), whose sum is σ = 12214716256464. Its totient is φ = 12205708348200.

The previous prime is 12210212302243. The next prime is 12210212302339. The reversal of 12210212302331 is 13320321201221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210212302331 is a prime.

It is a super-2 number, since 2×12210212302331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210212302297 and 12210212302306.

It is not an unprimeable number, because it can be changed into a prime (12210212302339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251973000 + ... + 2251978421.

It is an arithmetic number, because the mean of its divisors is an integer number (3053679064116).

Almost surely, 2^{12210212302331} is an apocalyptic number.

12210212302331 is a deficient number, since it is larger than the sum of its proper divisors (4503954133).

12210212302331 is an equidigital number, since it uses as much as digits as its factorization.

12210212302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503954132.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12210212302331 its reverse (13320321201221), we get a palindrome (25530533503552).

The spelling of 12210212302331 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, three hundred two thousand, three hundred thirty-one".