221033452 has 6 divisors (see below), whose sum is σ = 386808548. Its totient is φ = 110516724.

The previous prime is 221033429. The next prime is 221033453. The reversal of 221033452 is 254330122.

It is not an unprimeable number, because it can be changed into a prime (221033453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27629178 + ... + 27629185.

Almost surely, 2^221033452 is an apocalyptic number.

It is an amenable number.

221033452 is a deficient number, since it is larger than the sum of its proper divisors (165775096).

221033452 is a wasteful number, since it uses less digits than its factorization.

221033452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55258367 (or 55258365 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 221033452 is about 14867.1938172609. The cubic root of 221033452 is about 604.6248631761.

Adding to 221033452 its reverse (254330122), we get a palindrome (475363574).

The spelling of 221033452 in words is "two hundred twenty-one million, thirty-three thousand, four hundred fifty-two".