1163330221 has 8 divisors (see below), whose sum is σ = 1189728000. Its totient is φ = 1137224400.

The previous prime is 1163330191. The next prime is 1163330237. The reversal of 1163330221 is 1220333611.

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 1163330221 - 2⁷ = 1163330093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1163330192 and 1163330201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163330251) 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, 64921 + ... + 80878.

It is an arithmetic number, because the mean of its divisors is an integer number (148716000).

Almost surely, 2^1163330221 is an apocalyptic number.

It is an amenable number.

1163330221 is a deficient number, since it is larger than the sum of its proper divisors (26397779).

1163330221 is a wasteful number, since it uses less digits than its factorization.

1163330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145979.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1163330221 is about 34107.6270209465. The cubic root of 1163330221 is about 1051.7221085625.

Adding to 1163330221 its reverse (1220333611), we get a palindrome (2383663832).

The spelling of 1163330221 in words is "one billion, one hundred sixty-three million, three hundred thirty thousand, two hundred twenty-one".