221210113 has 8 divisors (see below), whose sum is σ = 233071488. Its totient is φ = 209535744.

The previous prime is 221210111. The next prime is 221210131. The reversal of 221210113 is 311012122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221210113 - 2¹ = 221210111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221210093 and 221210102.

It is not an unprimeable number, because it can be changed into a prime (221210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44320 + ... + 49057.

It is an arithmetic number, because the mean of its divisors is an integer number (29133936).

Almost surely, 2^221210113 is an apocalyptic number.

221210113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221210113 is a deficient number, since it is larger than the sum of its proper divisors (11861375).

221210113 is a wasteful number, since it uses less digits than its factorization.

221210113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93503.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 221210113 is about 14873.1339333713. The cubic root of 221210113 is about 604.7859024331.

Adding to 221210113 its reverse (311012122), we get a palindrome (532222235).

The spelling of 221210113 in words is "two hundred twenty-one million, two hundred ten thousand, one hundred thirteen".