2221348247 has 8 divisors (see below), whose sum is σ = 2251647552. Its totient is φ = 2191212000.

The previous prime is 2221348229. The next prime is 2221348291. The reversal of 2221348247 is 7428431222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221348247 - 2¹⁰ = 2221347223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221348447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13208 + ... + 67949.

It is an arithmetic number, because the mean of its divisors is an integer number (281455944).

Almost surely, 2^2221348247 is an apocalyptic number.

2221348247 is a deficient number, since it is larger than the sum of its proper divisors (30299305).

2221348247 is a wasteful number, since it uses less digits than its factorization.

2221348247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81529.

The product of its digits is 43008, while the sum is 35.

The square root of 2221348247 is about 47131.1812603928. The cubic root of 2221348247 is about 1304.7847830916.

Adding to 2221348247 its reverse (7428431222), we get a palindrome (9649779469).

The spelling of 2221348247 in words is "two billion, two hundred twenty-one million, three hundred forty-eight thousand, two hundred forty-seven".