2002022210221 has 6 divisors (see below), whose sum is σ = 2200569867566. Its totient is φ = 1820020191000.

The previous prime is 2002022210203. The next prime is 2002022210257. The reversal of 2002022210221 is 1220122202002.

It can be written as a sum of positive squares in only one way, i.e., 1157369307721 + 844652902500 = 1075811^2 + 919050^2 .

It is not a de Polignac number, because 2002022210221 - 2⁹ = 2002022209709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002022210195 and 2002022210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002022210521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8272818930 + ... + 8272819171.

Almost surely, 2^{2002022210221} is an apocalyptic number.

It is an amenable number.

2002022210221 is a deficient number, since it is larger than the sum of its proper divisors (198547657345).

2002022210221 is a wasteful number, since it uses less digits than its factorization.

2002022210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16545638123 (or 16545638112 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2002022210221 its reverse (1220122202002), we get a palindrome (3222144412223).

The spelling of 2002022210221 in words is "two trillion, two billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".