221002032 has 40 divisors (see below), whose sum is σ = 595747584. Its totient is φ = 70464064.

The previous prime is 221002031. The next prime is 221002043. The reversal of 221002032 is 230200122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 221001999 and 221002017.

It is not an unprimeable number, because it can be changed into a prime (221002031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98988 + ... + 101195.

Almost surely, 2^221002032 is an apocalyptic number.

It is an amenable number.

221002032 is an abundant number, since it is smaller than the sum of its proper divisors (374745552).

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

221002032 is a wasteful number, since it uses less digits than its factorization.

221002032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200217 (or 200211 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 221002032 is about 14866.1370907173. The cubic root of 221002032 is about 604.5962125907.

Adding to 221002032 its reverse (230200122), we get a palindrome (451202154).

The spelling of 221002032 in words is "two hundred twenty-one million, two thousand, thirty-two".