221221330001032 has 16 divisors (see below), whose sum is σ = 418595406540300. Its totient is φ = 109595888256960.

The previous prime is 221221330000999. The next prime is 221221330001039. The reversal of 221221330001032 is 230100033122122.

It can be written as a sum of positive squares in 2 ways, for example, as 216222143796036 + 4999186204996 = 14704494^2 + 2235886^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221221330000994 and 221221330001012.

It is not an unprimeable number, because it can be changed into a prime (221221330001039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126847092019 + ... + 126847093762.

Almost surely, 2^{221221330001032} is an apocalyptic number.

It is an amenable number.

221221330001032 is a deficient number, since it is larger than the sum of its proper divisors (197374076539268).

221221330001032 is a wasteful number, since it uses less digits than its factorization.

221221330001032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253694185896 (or 253694185892 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221221330001032 its reverse (230100033122122), we get a palindrome (451321363123154).

The spelling of 221221330001032 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, three hundred thirty million, one thousand, thirty-two".