222122113220221 has 8 divisors (see below), whose sum is σ = 235397548324224. Its totient is φ = 208869947943360.

The previous prime is 222122113220219. The next prime is 222122113220237. The reversal of 222122113220221 is 122022311221222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222122113220221 - 2¹ = 222122113220219 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 (222122113227221) 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, 5817437125 + ... + 5817475306.

It is an arithmetic number, because the mean of its divisors is an integer number (29424693540528).

Almost surely, 2^{222122113220221} is an apocalyptic number.

It is an amenable number.

222122113220221 is a deficient number, since it is larger than the sum of its proper divisors (13275435104003).

222122113220221 is a wasteful number, since it uses less digits than its factorization.

222122113220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634913571.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 222122113220221 its reverse (122022311221222), we get a palindrome (344144424441443).

The spelling of 222122113220221 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred thirteen million, two hundred twenty thousand, two hundred twenty-one".