12212313112031 has 2 divisors, whose sum is σ = 12212313112032. Its totient is φ = 12212313112030.

The previous prime is 12212313111991. The next prime is 12212313112063. The reversal of 12212313112031 is 13021131321221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13021131321221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212313112031 - 2³⁰ = 12211239370207 is a prime.

It is a super-2 number, since 2×12212313112031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212313111988 and 12212313112006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212313115031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106156556015 + 6106156556016.

It is an arithmetic number, because the mean of its divisors is an integer number (6106156556016).

Almost surely, 2^{12212313112031} is an apocalyptic number.

12212313112031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212313112031 is an equidigital number, since it uses as much as digits as its factorization.

12212313112031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12212313112031 its reverse (13021131321221), we get a palindrome (25233444433252).

The spelling of 12212313112031 in words is "twelve trillion, two hundred twelve billion, three hundred thirteen million, one hundred twelve thousand, thirty-one".