20003221232 has 40 divisors (see below), whose sum is σ = 39430266480. Its totient is φ = 9827816960.

The previous prime is 20003221201. The next prime is 20003221283. The reversal of 20003221232 is 23212230002.

It is a self number, because there is not a number n which added to its sum of digits gives 20003221232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4171028 + ... + 4175820.

It is an arithmetic number, because the mean of its divisors is an integer number (985756662).

Almost surely, 2^20003221232 is an apocalyptic number.

It is an amenable number.

20003221232 is a deficient number, since it is larger than the sum of its proper divisors (19427045248).

20003221232 is a wasteful number, since it uses less digits than its factorization.

20003221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281 (or 9275 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20003221232 its reverse (23212230002), we get a palindrome (43215451234).

The spelling of 20003221232 in words is "twenty billion, three million, two hundred twenty-one thousand, two hundred thirty-two".