235113221 has 6 divisors (see below), whose sum is σ = 273499110. Its totient is φ = 201525576.

The previous prime is 235113211. The next prime is 235113253. The reversal of 235113221 is 122311532.

It can be written as a sum of positive squares in only one way, i.e., 201924100 + 33189121 = 14210^2 + 5761^2 .

It is not a de Polignac number, because 235113221 - 2¹⁰ = 235112197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235113193 and 235113202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235113211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2399066 + ... + 2399163.

It is an arithmetic number, because the mean of its divisors is an integer number (45583185).

Almost surely, 2^235113221 is an apocalyptic number.

It is an amenable number.

235113221 is a deficient number, since it is larger than the sum of its proper divisors (38385889).

235113221 is an equidigital number, since it uses as much as digits as its factorization.

235113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798243 (or 4798236 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 235113221 is about 15333.4021339036. The cubic root of 235113221 is about 617.1996679684.

Adding to 235113221 its reverse (122311532), we get a palindrome (357424753).

The spelling of 235113221 in words is "two hundred thirty-five million, one hundred thirteen thousand, two hundred twenty-one".