221022202221121 has 8 divisors (see below), whose sum is σ = 253320575614400. Its totient is φ = 188904772096848.

The previous prime is 221022202221089. The next prime is 221022202221143. The reversal of 221022202221121 is 121122202220122.

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 221022202221121 - 2⁵ = 221022202221089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221022202221092 and 221022202221101.

It is not an unprimeable number, because it can be changed into a prime (221022202221181) 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, 45235814631 + ... + 45235819516.

It is an arithmetic number, because the mean of its divisors is an integer number (31665071951800).

Almost surely, 2^{221022202221121} is an apocalyptic number.

It is an amenable number.

221022202221121 is a deficient number, since it is larger than the sum of its proper divisors (32298373393279).

221022202221121 is an equidigital number, since it uses as much as digits as its factorization.

221022202221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90471634503.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221022202221121 its reverse (121122202220122), we get a palindrome (342144404441243).

Subtracting from 221022202221121 its reverse (121122202220122), we obtain a palindrome (99900000000999).

The spelling of 221022202221121 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-one".