233213221001 has 4 divisors (see below), whose sum is σ = 233216750100. Its totient is φ = 233209691904.

The previous prime is 233213220973. The next prime is 233213221051. The reversal of 233213221001 is 100122312332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8299210000 + 224914011001 = 91100^2 + 474251^2 .

It is a cyclic number.

It is not a de Polignac number, because 233213221001 - 2¹⁰ = 233213219977 is a prime.

It is a super-2 number, since 2×233213221001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233213221051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663496 + ... + 1798233.

It is an arithmetic number, because the mean of its divisors is an integer number (58304187525).

Almost surely, 2^233213221001 is an apocalyptic number.

It is an amenable number.

233213221001 is a deficient number, since it is larger than the sum of its proper divisors (3529099).

233213221001 is an equidigital number, since it uses as much as digits as its factorization.

233213221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3529098.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 233213221001 its reverse (100122312332), we get a palindrome (333335533333).

The spelling of 233213221001 in words is "two hundred thirty-three billion, two hundred thirteen million, two hundred twenty-one thousand, one".