221320133330 has 16 divisors (see below), whose sum is σ = 419343410880. Its totient is φ = 83868682032.

The previous prime is 221320133299. The next prime is 221320133357. The reversal of 221320133330 is 33331023122.

It is a junction number, because it is equal to n+sod(n) for n = 221320133296 and 221320133305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582421214 + ... + 582421593.

It is an arithmetic number, because the mean of its divisors is an integer number (26208963180).

Almost surely, 2^221320133330 is an apocalyptic number.

221320133330 is a deficient number, since it is larger than the sum of its proper divisors (198023277550).

221320133330 is a wasteful number, since it uses less digits than its factorization.

221320133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164842833.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 221320133330 its reverse (33331023122), we get a palindrome (254651156452).

The spelling of 221320133330 in words is "two hundred twenty-one billion, three hundred twenty million, one hundred thirty-three thousand, three hundred thirty".