2233513221 has 4 divisors (see below), whose sum is σ = 2978017632. Its totient is φ = 1489008812.

The previous prime is 2233513199. The next prime is 2233513237. The reversal of 2233513221 is 1223153322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2233513221 - 2¹¹ = 2233511173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2233513191 and 2233513200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233513291) 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 3 ways as a sum of consecutive naturals, for example, 372252201 + ... + 372252206.

It is an arithmetic number, because the mean of its divisors is an integer number (744504408).

Almost surely, 2^2233513221 is an apocalyptic number.

It is an amenable number.

2233513221 is a deficient number, since it is larger than the sum of its proper divisors (744504411).

2233513221 is an equidigital number, since it uses as much as digits as its factorization.

2233513221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744504410.

The product of its digits is 2160, while the sum is 24.

The square root of 2233513221 is about 47260.0594688581. The cubic root of 2233513221 is about 1307.1622860074.

Adding to 2233513221 its reverse (1223153322), we get a palindrome (3456666543).

The spelling of 2233513221 in words is "two billion, two hundred thirty-three million, five hundred thirteen thousand, two hundred twenty-one".