9221881229 has 8 divisors (see below), whose sum is σ = 10124313888. Its totient is φ = 8330128560.

The previous prime is 9221881177. The next prime is 9221881237.

9221881229 is nontrivially palindromic in base 10.

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 9221881229 - 2⁸ = 9221880973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9221881229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9221881289) 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, 2668187 + ... + 2671640.

It is an arithmetic number, because the mean of its divisors is an integer number (1265539236).

Almost surely, 2^9221881229 is an apocalyptic number.

It is an amenable number.

9221881229 is a deficient number, since it is larger than the sum of its proper divisors (902432659).

9221881229 is a wasteful number, since it uses less digits than its factorization.

9221881229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339995.

The product of its digits is 82944, while the sum is 44.

The square root of 9221881229 is about 96030.6265157111. The cubic root of 9221881229 is about 2097.0390037580.

The spelling of 9221881229 in words is "nine billion, two hundred twenty-one million, eight hundred eighty-one thousand, two hundred twenty-nine".