11212232287 has 2 divisors, whose sum is σ = 11212232288. Its totient is φ = 11212232286.

The previous prime is 11212232281. The next prime is 11212232323. The reversal of 11212232287 is 78223221211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11212232287 - 2⁷ = 11212232159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212232281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606116143 + 5606116144.

It is an arithmetic number, because the mean of its divisors is an integer number (5606116144).

Almost surely, 2^11212232287 is an apocalyptic number.

11212232287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212232287 is an equidigital number, since it uses as much as digits as its factorization.

11212232287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

Adding to 11212232287 its reverse (78223221211), we get a palindrome (89435453498).

The spelling of 11212232287 in words is "eleven billion, two hundred twelve million, two hundred thirty-two thousand, two hundred eighty-seven".