11683647221 has 8 divisors (see below), whose sum is σ = 11883449760. Its totient is φ = 11483903952.

The previous prime is 11683647193. The next prime is 11683647229. The reversal of 11683647221 is 12274638611.

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 11683647221 - 2¹⁰ = 11683646197 is a prime.

It is a super-2 number, since 2×11683647221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11683647229) 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, 594671 + ... + 614003.

It is an arithmetic number, because the mean of its divisors is an integer number (1485431220).

Almost surely, 2^11683647221 is an apocalyptic number.

It is an amenable number.

11683647221 is a deficient number, since it is larger than the sum of its proper divisors (199802539).

11683647221 is a wasteful number, since it uses less digits than its factorization.

11683647221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29635.

The product of its digits is 96768, while the sum is 41.

The spelling of 11683647221 in words is "eleven billion, six hundred eighty-three million, six hundred forty-seven thousand, two hundred twenty-one".