16401222232 has 32 divisors (see below), whose sum is σ = 31173004800. Its totient is φ = 8088631200.

The previous prime is 16401222217. The next prime is 16401222241. The reversal of 16401222232 is 23222210461.

16401222232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16401222197 and 16401222206.

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, 639007 + ... + 664177.

It is an arithmetic number, because the mean of its divisors is an integer number (974156400).

Almost surely, 2^16401222232 is an apocalyptic number.

It is an amenable number.

16401222232 is a deficient number, since it is larger than the sum of its proper divisors (14771782568).

16401222232 is a wasteful number, since it uses less digits than its factorization.

16401222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26287 (or 26283 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 16401222232 its reverse (23222210461), we get a palindrome (39623432693).

The spelling of 16401222232 in words is "sixteen billion, four hundred one million, two hundred twenty-two thousand, two hundred thirty-two".