2002203221 has 2 divisors, whose sum is σ = 2002203222. Its totient is φ = 2002203220.

The previous prime is 2002203211. The next prime is 2002203227. The reversal of 2002203221 is 1223022002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1235522500 + 766680721 = 35150^2 + 27689^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002203221 - 2⁶ = 2002203157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2002203196 and 2002203205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002203227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001101610 + 1001101611.

It is an arithmetic number, because the mean of its divisors is an integer number (1001101611).

Almost surely, 2^2002203221 is an apocalyptic number.

It is an amenable number.

2002203221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002203221 is an equidigital number, since it uses as much as digits as its factorization.

2002203221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2002203221 is about 44745.9855294305. The cubic root of 2002203221 is about 1260.3835275323.

Adding to 2002203221 its reverse (1223022002), we get a palindrome (3225225223).

The spelling of 2002203221 in words is "two billion, two million, two hundred three thousand, two hundred twenty-one".