221113011 has 16 divisors (see below), whose sum is σ = 338412800. Its totient is φ = 125795808.

The previous prime is 221112977. The next prime is 221113037. The reversal of 221113011 is 110311122.

It is not a de Polignac number, because 221113011 - 2¹¹ = 221110963 is a prime.

It is a super-2 number, since 2×221113011² = 97781927266972242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221113091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18181 + ... + 27798.

It is an arithmetic number, because the mean of its divisors is an integer number (21150800).

Almost surely, 2^221113011 is an apocalyptic number.

221113011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

221113011 is a deficient number, since it is larger than the sum of its proper divisors (117299789).

221113011 is a wasteful number, since it uses less digits than its factorization.

221113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46218.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 221113011 is about 14869.8692327808. The cubic root of 221113011 is about 604.6973975652.

Adding to 221113011 its reverse (110311122), we get a palindrome (331424133).

The spelling of 221113011 in words is "two hundred twenty-one million, one hundred thirteen thousand, eleven".