2223311212321 has 8 divisors (see below), whose sum is σ = 2296291449960. Its totient is φ = 2151480269952.

The previous prime is 2223311212307. The next prime is 2223311212379. The reversal of 2223311212321 is 1232121133222.

It can be written as a sum of positive squares in 4 ways, for example, as 250160025600 + 1973151186721 = 500160^2 + 1404689^2 .

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 2223311212321 - 2¹⁷ = 2223311081249 is a prime.

It is a super-2 number, since 2×2223311212321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223311212301) 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, 287319886 + ... + 287327623.

It is an arithmetic number, because the mean of its divisors is an integer number (287036431245).

Almost surely, 2^{2223311212321} is an apocalyptic number.

It is an amenable number.

2223311212321 is a deficient number, since it is larger than the sum of its proper divisors (72980237639).

2223311212321 is an equidigital number, since it uses as much as digits as its factorization.

2223311212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574647635.

The product of its digits is 1728, while the sum is 25.

Adding to 2223311212321 its reverse (1232121133222), we get a palindrome (3455432345543).

The spelling of 2223311212321 in words is "two trillion, two hundred twenty-three billion, three hundred eleven million, two hundred twelve thousand, three hundred twenty-one".