2212544247 has 8 divisors (see below), whose sum is σ = 2952374256. Its totient is φ = 1473871872.

The previous prime is 2212544207. The next prime is 2212544251. The reversal of 2212544247 is 7424452122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2212544247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212544207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284938 + ... + 292599.

It is an arithmetic number, because the mean of its divisors is an integer number (369046782).

Almost surely, 2^2212544247 is an apocalyptic number.

2212544247 is a deficient number, since it is larger than the sum of its proper divisors (739830009).

2212544247 is a wasteful number, since it uses less digits than its factorization.

2212544247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578817.

The product of its digits is 35840, while the sum is 33.

The square root of 2212544247 is about 47037.6896435188. The cubic root of 2212544247 is about 1303.0587240221.

Adding to 2212544247 its reverse (7424452122), we get a palindrome (9636996369).

The spelling of 2212544247 in words is "two billion, two hundred twelve million, five hundred forty-four thousand, two hundred forty-seven".