223331021213 has 8 divisors (see below), whose sum is σ = 233627959800. Its totient is φ = 213207140608.

The previous prime is 223331021189. The next prime is 223331021219. The reversal of 223331021213 is 312120133322.

It can be written as a sum of positive squares in 4 ways, for example, as 4926214969 + 218404806244 = 70187^2 + 467338^2 .

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 223331021213 - 2²⁶ = 223263912349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223331021219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43261856 + ... + 43267017.

It is an arithmetic number, because the mean of its divisors is an integer number (29203494975).

Almost surely, 2^223331021213 is an apocalyptic number.

It is an amenable number.

223331021213 is a deficient number, since it is larger than the sum of its proper divisors (10296938587).

223331021213 is an equidigital number, since it uses as much as digits as its factorization.

223331021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86528991.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 223331021213 its reverse (312120133322), we get a palindrome (535451154535).

The spelling of 223331021213 in words is "two hundred twenty-three billion, three hundred thirty-one million, twenty-one thousand, two hundred thirteen".