12212112813431 has 2 divisors, whose sum is σ = 12212112813432. Its totient is φ = 12212112813430.

The previous prime is 12212112813409. The next prime is 12212112813449. The reversal of 12212112813431 is 13431821121221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12212112813431 - 2⁶ = 12212112813367 is a prime.

It is a super-2 number, since 2×12212112813431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212112813631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106056406715 + 6106056406716.

It is an arithmetic number, because the mean of its divisors is an integer number (6106056406716).

Almost surely, 2^{12212112813431} is an apocalyptic number.

12212112813431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212112813431 is an equidigital number, since it uses as much as digits as its factorization.

12212112813431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

Adding to 12212112813431 its reverse (13431821121221), we get a palindrome (25643933934652).

The spelling of 12212112813431 in words is "twelve trillion, two hundred twelve billion, one hundred twelve million, eight hundred thirteen thousand, four hundred thirty-one".