2222202020221 has 8 divisors (see below), whose sum is σ = 2223781500600. Its totient is φ = 2220623032320.

The previous prime is 2222202020191. The next prime is 2222202020369. The reversal of 2222202020221 is 1220202022222.

It can be written as a sum of positive squares in 4 ways, for example, as 674320168900 + 1547881851321 = 821170^2 + 1244139^2 .

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 2222202020221 - 2⁵ = 2222202020189 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 (2222202020821) 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, 9151345 + ... + 9391033.

It is an arithmetic number, because the mean of its divisors is an integer number (277972687575).

Almost surely, 2^{2222202020221} is an apocalyptic number.

It is an amenable number.

2222202020221 is a deficient number, since it is larger than the sum of its proper divisors (1579480379).

2222202020221 is a wasteful number, since it uses less digits than its factorization.

2222202020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246239.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2222202020221 its reverse (1220202022222), we get a palindrome (3442404042443).

The spelling of 2222202020221 in words is "two trillion, two hundred twenty-two billion, two hundred two million, twenty thousand, two hundred twenty-one".