221321322331330 has 64 divisors (see below), whose sum is σ = 433039299759360. Its totient is φ = 80953632278784.

The previous prime is 221321322331313. The next prime is 221321322331357. The reversal of 221321322331330 is 33133223123122.

It is a junction number, because it is equal to n+sod(n) for n = 221321322331292 and 221321322331301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1701503536 + ... + 1701633604.

It is an arithmetic number, because the mean of its divisors is an integer number (6766239058740).

Almost surely, 2^{221321322331330} is an apocalyptic number.

221321322331330 is a deficient number, since it is larger than the sum of its proper divisors (211717977428030).

221321322331330 is a wasteful number, since it uses less digits than its factorization.

221321322331330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252523.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 221321322331330 its reverse (33133223123122), we get a palindrome (254454545454452).

The spelling of 221321322331330 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, three hundred twenty-two million, three hundred thirty-one thousand, three hundred thirty".