222122342442221 has 32 divisors (see below), whose sum is σ = 243566910757632. Its totient is φ = 201326438407680.

The previous prime is 222122342442191. The next prime is 222122342442223. The reversal of 222122342442221 is 122244243221222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222122342442221 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 (222122342442223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381827051 + ... + 382408343.

It is an arithmetic number, because the mean of its divisors is an integer number (7611465961176).

Almost surely, 2^{222122342442221} is an apocalyptic number.

It is an amenable number.

222122342442221 is a deficient number, since it is larger than the sum of its proper divisors (21444568315411).

222122342442221 is a wasteful number, since it uses less digits than its factorization.

222122342442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583173.

The product of its digits is 98304, while the sum is 35.

Adding to 222122342442221 its reverse (122244243221222), we get a palindrome (344366585663443).

The spelling of 222122342442221 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, three hundred forty-two million, four hundred forty-two thousand, two hundred twenty-one".