1133330221 has 16 divisors (see below), whose sum is σ = 1246924800. Its totient is φ = 1025286768.

The previous prime is 1133330213. The next prime is 1133330227. The reversal of 1133330221 is 1220333311.

It is a cyclic number.

It is not a de Polignac number, because 1133330221 - 2³ = 1133330213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133330227) 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, 312400 + ... + 316006.

It is an arithmetic number, because the mean of its divisors is an integer number (77932800).

Almost surely, 2^1133330221 is an apocalyptic number.

It is an amenable number.

1133330221 is a deficient number, since it is larger than the sum of its proper divisors (113594579).

1133330221 is a wasteful number, since it uses less digits than its factorization.

1133330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1133330221 is about 33664.9702361371. The cubic root of 1133330221 is about 1042.6026470668.

Adding to 1133330221 its reverse (1220333311), we get a palindrome (2353663532).

The spelling of 1133330221 in words is "one billion, one hundred thirty-three million, three hundred thirty thousand, two hundred twenty-one".