221341430 has 16 divisors (see below), whose sum is σ = 399222000. Its totient is φ = 88357152.

The previous prime is 221341429. The next prime is 221341433. The reversal of 221341430 is 34143122.

221341430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221341433) 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, 17189 + ... + 27168.

It is an arithmetic number, because the mean of its divisors is an integer number (24951375).

Almost surely, 2^221341430 is an apocalyptic number.

221341430 is a deficient number, since it is larger than the sum of its proper divisors (177880570).

221341430 is a wasteful number, since it uses less digits than its factorization.

221341430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44863.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 221341430 is about 14877.5478490240. The cubic root of 221341430 is about 604.9055518159.

Adding to 221341430 its reverse (34143122), we get a palindrome (255484552).

The spelling of 221341430 in words is "two hundred twenty-one million, three hundred forty-one thousand, four hundred thirty".