9216226091 has 4 divisors (see below), whose sum is σ = 9218599800. Its totient is φ = 9213852384.

The previous prime is 9216226087. The next prime is 9216226121. The reversal of 9216226091 is 1906226129.

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

It is a cyclic number.

It is not a de Polignac number, because 9216226091 - 2² = 9216226087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9216226291) 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, 1181021 + ... + 1188798.

It is an arithmetic number, because the mean of its divisors is an integer number (2304649950).

Almost surely, 2^9216226091 is an apocalyptic number.

9216226091 is a deficient number, since it is larger than the sum of its proper divisors (2373709).

9216226091 is a wasteful number, since it uses less digits than its factorization.

9216226091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373708.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 9216226091 is about 96001.1775500697. The cubic root of 9216226091 is about 2096.6102600777.

Adding to 9216226091 its sum of digits (38), we get a palindrome (9216226129).

The spelling of 9216226091 in words is "nine billion, two hundred sixteen million, two hundred twenty-six thousand, ninety-one".