8362214221 has 4 divisors (see below), whose sum is σ = 8372400444. Its totient is φ = 8352028000.

The previous prime is 8362214153. The next prime is 8362214243. The reversal of 8362214221 is 1224122638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1911875625 + 6450338596 = 43725^2 + 80314^2 .

It is a cyclic number.

It is not a de Polignac number, because 8362214221 - 2¹⁵ = 8362181453 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8362214251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091880 + ... + 5093521.

It is an arithmetic number, because the mean of its divisors is an integer number (2093100111).

Almost surely, 2^8362214221 is an apocalyptic number.

It is an amenable number.

8362214221 is a deficient number, since it is larger than the sum of its proper divisors (10186223).

8362214221 is a wasteful number, since it uses less digits than its factorization.

8362214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10186222.

The product of its digits is 9216, while the sum is 31.

The square root of 8362214221 is about 91445.1432335255. The cubic root of 8362214221 is about 2029.7400899171.

Adding to 8362214221 its reverse (1224122638), we get a palindrome (9586336859).

The spelling of 8362214221 in words is "eight billion, three hundred sixty-two million, two hundred fourteen thousand, two hundred twenty-one".