221000323132 has 12 divisors (see below), whose sum is σ = 386844946600. Its totient is φ = 110473195536.

The previous prime is 221000323129. The next prime is 221000323189. The reversal of 221000323132 is 231323000122.

It is a super-2 number, since 2×221000323132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6723063 + ... + 6755854.

Almost surely, 2^221000323132 is an apocalyptic number.

It is an amenable number.

221000323132 is a deficient number, since it is larger than the sum of its proper divisors (165844623468).

221000323132 is a wasteful number, since it uses less digits than its factorization.

221000323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13483020 (or 13483018 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 221000323132 its reverse (231323000122), we get a palindrome (452323323254).

The spelling of 221000323132 in words is "two hundred twenty-one billion, three hundred twenty-three thousand, one hundred thirty-two".