212224043431 has 2 divisors, whose sum is σ = 212224043432. Its totient is φ = 212224043430.

The previous prime is 212224043407. The next prime is 212224043459. The reversal of 212224043431 is 134340422212.

It is an a-pointer prime, because the next prime (212224043459) can be obtained adding 212224043431 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212224043431 - 2¹¹ = 212224041383 is a prime.

It is a super-2 number, since 2×212224043431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212224043431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212224043401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106112021715 + 106112021716.

It is an arithmetic number, because the mean of its divisors is an integer number (106112021716).

Almost surely, 2^212224043431 is an apocalyptic number.

212224043431 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224043431 is an equidigital number, since it uses as much as digits as its factorization.

212224043431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212224043431 its reverse (134340422212), we get a palindrome (346564465643).

The spelling of 212224043431 in words is "two hundred twelve billion, two hundred twenty-four million, forty-three thousand, four hundred thirty-one".