221113122 has 16 divisors (see below), whose sum is σ = 461453760. Its totient is φ = 70499792.

The previous prime is 221113121. The next prime is 221113129. The reversal of 221113122 is 221311122.

It is a super-3 number, since 3×221113122³ (a number of 26 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (221113121) 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, 800997 + ... + 801272.

It is an arithmetic number, because the mean of its divisors is an integer number (28840860).

Almost surely, 2^221113122 is an apocalyptic number.

221113122 is an abundant number, since it is smaller than the sum of its proper divisors (240340638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221113122 is a wasteful number, since it uses less digits than its factorization.

221113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602297.

The product of its digits is 48, while the sum is 15.

The square root of 221113122 is about 14869.8729651601. The cubic root of 221113122 is about 604.6974987523.

Adding to 221113122 its reverse (221311122), we get a palindrome (442424244).

The spelling of 221113122 in words is "two hundred twenty-one million, one hundred thirteen thousand, one hundred twenty-two".