221113030 has 32 divisors (see below), whose sum is σ = 417783744. Its totient is φ = 84095616.

The previous prime is 221112977. The next prime is 221113037. The reversal of 221113030 is 30311122.

It is a self number, because there is not a number n which added to its sum of digits gives 221113030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37012 + ... + 42568.

It is an arithmetic number, because the mean of its divisors is an integer number (13055742).

Almost surely, 2^221113030 is an apocalyptic number.

221113030 is a deficient number, since it is larger than the sum of its proper divisors (196670714).

221113030 is a wasteful number, since it uses less digits than its factorization.

221113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 221113030 is about 14869.8698716566. The cubic root of 221113030 is about 604.6974148855.

Adding to 221113030 its reverse (30311122), we get a palindrome (251424152).

The spelling of 221113030 in words is "two hundred twenty-one million, one hundred thirteen thousand, thirty".