12213121033031 has 2 divisors, whose sum is σ = 12213121033032. Its totient is φ = 12213121033030.

The previous prime is 12213121033027. The next prime is 12213121033033. The reversal of 12213121033031 is 13033012131221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12213121033031 - 2² = 12213121033027 is a prime.

It is a super-2 number, since 2×12213121033031² (a number of 27 digits) contains 22 as substring.

Together with 12213121033033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213121032988 and 12213121033006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213121033033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106560516515 + 6106560516516.

It is an arithmetic number, because the mean of its divisors is an integer number (6106560516516).

Almost surely, 2^{12213121033031} is an apocalyptic number.

12213121033031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213121033031 is an equidigital number, since it uses as much as digits as its factorization.

12213121033031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12213121033031 its reverse (13033012131221), we get a palindrome (25246133164252).

The spelling of 12213121033031 in words is "twelve trillion, two hundred thirteen billion, one hundred twenty-one million, thirty-three thousand, thirty-one".