2223238323221 has 4 divisors (see below), whose sum is σ = 2231442154944. Its totient is φ = 2215034491500.

The previous prime is 2223238323199. The next prime is 2223238323323. The reversal of 2223238323221 is 1223238323222.

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 a de Polignac number, because none of the positive numbers 2^k-2223238323221 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 (2223238323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101915455 + ... + 4101915996.

It is an arithmetic number, because the mean of its divisors is an integer number (557860538736).

Almost surely, 2^{2223238323221} is an apocalyptic number.

It is an amenable number.

2223238323221 is a deficient number, since it is larger than the sum of its proper divisors (8203831723).

2223238323221 is an equidigital number, since it uses as much as digits as its factorization.

2223238323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8203831722.

The product of its digits is 82944, while the sum is 35.

Subtracting from 2223238323221 its reverse (1223238323222), we obtain a palindrome (999999999999).

The spelling of 2223238323221 in words is "two trillion, two hundred twenty-three billion, two hundred thirty-eight million, three hundred twenty-three thousand, two hundred twenty-one".