11021212247 has 2 divisors, whose sum is σ = 11021212248. Its totient is φ = 11021212246.

The previous prime is 11021212201. The next prime is 11021212259. The reversal of 11021212247 is 74221212011.

11021212247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11021212247 - 2²⁸ = 10752776791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021212547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510606123 + 5510606124.

It is an arithmetic number, because the mean of its divisors is an integer number (5510606124).

Almost surely, 2^11021212247 is an apocalyptic number.

11021212247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021212247 is an equidigital number, since it uses as much as digits as its factorization.

11021212247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 11021212247 its reverse (74221212011), we get a palindrome (85242424258).

The spelling of 11021212247 in words is "eleven billion, twenty-one million, two hundred twelve thousand, two hundred forty-seven".