223320211221 has 8 divisors (see below), whose sum is σ = 315275592384. Its totient is φ = 140122485440.

The previous prime is 223320211199. The next prime is 223320211249. The reversal of 223320211221 is 122112023322.

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 223320211221 - 2⁶ = 223320211157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223320211291) 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, 2189413785 + ... + 2189413886.

It is an arithmetic number, because the mean of its divisors is an integer number (39409449048).

Almost surely, 2^223320211221 is an apocalyptic number.

It is an amenable number.

223320211221 is a deficient number, since it is larger than the sum of its proper divisors (91955381163).

223320211221 is a wasteful number, since it uses less digits than its factorization.

223320211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378827691.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 223320211221 its reverse (122112023322), we get a palindrome (345432234543).

The spelling of 223320211221 in words is "two hundred twenty-three billion, three hundred twenty million, two hundred eleven thousand, two hundred twenty-one".