221341024 has 24 divisors (see below), whose sum is σ = 437102568. Its totient is φ = 110330880.

The previous prime is 221341019. The next prime is 221341027. The reversal of 221341024 is 420143122.

It is a junction number, because it is equal to n+sod(n) for n = 221340992 and 221341010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221341027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144 + ... + 21040.

It is an arithmetic number, because the mean of its divisors is an integer number (18212607).

Almost surely, 2^221341024 is an apocalyptic number.

It is an amenable number.

221341024 is a deficient number, since it is larger than the sum of its proper divisors (215761544).

221341024 is a wasteful number, since it uses less digits than its factorization.

221341024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21238 (or 21230 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 221341024 is about 14877.5342042961. The cubic root of 221341024 is about 604.9051819622.

Adding to 221341024 its reverse (420143122), we get a palindrome (641484146).

The spelling of 221341024 in words is "two hundred twenty-one million, three hundred forty-one thousand, twenty-four".