32400221332 has 24 divisors (see below), whose sum is σ = 57065830976. Its totient is φ = 16095760128.

The previous prime is 32400221323. The next prime is 32400221351. The reversal of 32400221332 is 23312200423.

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, 3034948 + ... + 3045604.

Almost surely, 2^32400221332 is an apocalyptic number.

It is an amenable number.

32400221332 is a deficient number, since it is larger than the sum of its proper divisors (24665609644).

32400221332 is a wasteful number, since it uses less digits than its factorization.

32400221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487 (or 15485 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 32400221332 its reverse (23312200423), we get a palindrome (55712421755).

The spelling of 32400221332 in words is "thirty-two billion, four hundred million, two hundred twenty-one thousand, three hundred thirty-two".