221023032 has 16 divisors (see below), whose sum is σ = 552557640. Its totient is φ = 73674336.

The previous prime is 221023013. The next prime is 221023037. The reversal of 221023032 is 230320122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221023037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4604623 + ... + 4604670.

Almost surely, 2^221023032 is an apocalyptic number.

It is an amenable number.

221023032 is an abundant number, since it is smaller than the sum of its proper divisors (331534608).

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

221023032 is a wasteful number, since it uses less digits than its factorization.

221023032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209302 (or 9209298 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 221023032 is about 14866.8433771262. The cubic root of 221023032 is about 604.6153619143.

Adding to 221023032 its reverse (230320122), we get a palindrome (451343154).

The spelling of 221023032 in words is "two hundred twenty-one million, twenty-three thousand, thirty-two".