221113430 has 16 divisors (see below), whose sum is σ = 399594384. Its totient is φ = 88092000.

The previous prime is 221113397. The next prime is 221113433. The reversal of 221113430 is 34311122.

221113430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221113430² = 97782297852729800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221113399 and 221113408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113433) 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, 41537 + ... + 46556.

It is an arithmetic number, because the mean of its divisors is an integer number (24974649).

Almost surely, 2^221113430 is an apocalyptic number.

221113430 is a deficient number, since it is larger than the sum of its proper divisors (178480954).

221113430 is a wasteful number, since it uses less digits than its factorization.

221113430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88351.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 221113430 is about 14869.8833216673. The cubic root of 221113430 is about 604.6977795238.

Adding to 221113430 its reverse (34311122), we get a palindrome (255424552).

The spelling of 221113430 in words is "two hundred twenty-one million, one hundred thirteen thousand, four hundred thirty".