222344321223221 has 16 divisors (see below), whose sum is σ = 248925378240000. Its totient is φ = 197362264048128.

The previous prime is 222344321223163. The next prime is 222344321223257. The reversal of 222344321223221 is 122322123443222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222344321223221 is a prime.

It is a super-2 number, since 2×222344321223221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222344321223421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543364096 + ... + 1543508153.

It is an arithmetic number, because the mean of its divisors is an integer number (15557836140000).

Almost surely, 2^{222344321223221} is an apocalyptic number.

It is an amenable number.

222344321223221 is a deficient number, since it is larger than the sum of its proper divisors (26581057016779).

222344321223221 is a wasteful number, since it uses less digits than its factorization.

222344321223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086872508.

The product of its digits is 110592, while the sum is 35.

Adding to 222344321223221 its reverse (122322123443222), we get a palindrome (344666444666443).

The spelling of 222344321223221 in words is "two hundred twenty-two trillion, three hundred forty-four billion, three hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-one".