221231003032 has 32 divisors (see below), whose sum is σ = 447748217280. Its totient is φ = 101870784000.

The previous prime is 221231003029. The next prime is 221231003041. The reversal of 221231003032 is 230300132122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411344 + ... + 2501407.

It is an arithmetic number, because the mean of its divisors is an integer number (13992131790).

Almost surely, 2^221231003032 is an apocalyptic number.

It is an amenable number.

221231003032 is an abundant number, since it is smaller than the sum of its proper divisors (226517214248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221231003032 is a wasteful number, since it uses less digits than its factorization.

221231003032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913203 (or 4913199 counting only the distinct ones).

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

Adding to 221231003032 its reverse (230300132122), we get a palindrome (451531135154).

The spelling of 221231003032 in words is "two hundred twenty-one billion, two hundred thirty-one million, three thousand, thirty-two".