221223301330 has 16 divisors (see below), whose sum is σ = 398266063704. Its totient is φ = 88475071360.

The previous prime is 221223301303. The next prime is 221223301333. The reversal of 221223301330 is 33103322122.

It can be written as a sum of positive squares in 4 ways, for example, as 65480203881 + 155743097449 = 255891^2 + 394643^2 .

It is not an unprimeable number, because it can be changed into a prime (221223301333) 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, 1715827 + ... + 1840246.

Almost surely, 2^221223301330 is an apocalyptic number.

221223301330 is a deficient number, since it is larger than the sum of its proper divisors (177042762374).

221223301330 is a wasteful number, since it uses less digits than its factorization.

221223301330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562301.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 221223301330 its reverse (33103322122), we get a palindrome (254326623452).

The spelling of 221223301330 in words is "two hundred twenty-one billion, two hundred twenty-three million, three hundred one thousand, three hundred thirty".