2222201220221 has 8 divisors (see below), whose sum is σ = 2361020482080. Its totient is φ = 2085568088688.

The previous prime is 2222201220203. The next prime is 2222201220227. The reversal of 2222201220221 is 1220221022222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222201220221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222201220193 and 2222201220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222201220227) 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, 546530486 + ... + 546534551.

It is an arithmetic number, because the mean of its divisors is an integer number (295127560260).

Almost surely, 2^{2222201220221} is an apocalyptic number.

It is an amenable number.

2222201220221 is a deficient number, since it is larger than the sum of its proper divisors (138819261859).

2222201220221 is a wasteful number, since it uses less digits than its factorization.

2222201220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093065163.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2222201220221 its reverse (1220221022222), we get a palindrome (3442422242443).

It can be divided in two parts, 222220 and 1220221, that added together give a palindrome (1442441).

The spelling of 2222201220221 in words is "two trillion, two hundred twenty-two billion, two hundred one million, two hundred twenty thousand, two hundred twenty-one".