222221011210221 has 8 divisors (see below), whose sum is σ = 296638012650240. Its totient is φ = 147975675288512.

The previous prime is 222221011210181. The next prime is 222221011210241. The reversal of 222221011210221 is 122012110122222.

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 222221011210221 - 2¹⁷ = 222221011079149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221011210241) 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, 42916376556 + ... + 42916381733.

It is an arithmetic number, because the mean of its divisors is an integer number (37079751581280).

Almost surely, 2^{222221011210221} is an apocalyptic number.

It is an amenable number.

222221011210221 is a deficient number, since it is larger than the sum of its proper divisors (74417001440019).

222221011210221 is an equidigital number, since it uses as much as digits as its factorization.

222221011210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85832759155.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222221011210221 its reverse (122012110122222), we get a palindrome (344233121332443).

The spelling of 222221011210221 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, eleven million, two hundred ten thousand, two hundred twenty-one".