221024043 has 12 divisors (see below), whose sum is σ = 333138000. Its totient is φ = 140942736.

The previous prime is 221024029. The next prime is 221024047. The reversal of 221024043 is 340420122.

It is not a de Polignac number, because 221024043 - 2⁸ = 221023787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221024047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 533668 + ... + 534081.

It is an arithmetic number, because the mean of its divisors is an integer number (27761500).

Almost surely, 2^221024043 is an apocalyptic number.

221024043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221024043 is a deficient number, since it is larger than the sum of its proper divisors (112113957).

221024043 is a wasteful number, since it uses less digits than its factorization.

221024043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067778 (or 1067775 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 221024043 is about 14866.8773789253. The cubic root of 221024043 is about 604.6162837869.

Adding to 221024043 its reverse (340420122), we get a palindrome (561444165).

The spelling of 221024043 in words is "two hundred twenty-one million, twenty-four thousand, forty-three".