86743222221 has 16 divisors (see below), whose sum is σ = 116231466240. Its totient is φ = 57542472960.

The previous prime is 86743222187. The next prime is 86743222333. The reversal of 86743222221 is 12222234768.

It is not a de Polignac number, because 86743222221 - 2⁹ = 86743221709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86743222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86743222121) 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 in 15 ways as a sum of consecutive naturals, for example, 534561 + ... + 677673.

It is an arithmetic number, because the mean of its divisors is an integer number (7264466640).

Almost surely, 2^86743222221 is an apocalyptic number.

It is an amenable number.

86743222221 is a deficient number, since it is larger than the sum of its proper divisors (29488244019).

86743222221 is a wasteful number, since it uses less digits than its factorization.

86743222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144116.

The product of its digits is 129024, while the sum is 39.

Adding to 86743222221 its reverse (12222234768), we get a palindrome (98965456989).

The spelling of 86743222221 in words is "eighty-six billion, seven hundred forty-three million, two hundred twenty-two thousand, two hundred twenty-one".