221134013 has 8 divisors (see below), whose sum is σ = 226271232. Its totient is φ = 216014896.

The previous prime is 221133971. The next prime is 221134037. The reversal of 221134013 is 310431122.

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 221134013 - 2¹² = 221129917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221133982 and 221134000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221134063) 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 7 ways as a sum of consecutive naturals, for example, 21956 + ... + 30402.

It is an arithmetic number, because the mean of its divisors is an integer number (28283904).

Almost surely, 2^221134013 is an apocalyptic number.

It is an amenable number.

221134013 is a deficient number, since it is larger than the sum of its proper divisors (5137219).

221134013 is an equidigital number, since it uses as much as digits as its factorization.

221134013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051.

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

The square root of 221134013 is about 14870.5754091763. The cubic root of 221134013 is about 604.7165423042.

Adding to 221134013 its reverse (310431122), we get a palindrome (531565135).

The spelling of 221134013 in words is "two hundred twenty-one million, one hundred thirty-four thousand, thirteen".