2200202021 has 2 divisors, whose sum is σ = 2200202022. Its totient is φ = 2200202020.

The previous prime is 2200202009. The next prime is 2200202041. The reversal of 2200202021 is 1202020022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1554330625 + 645871396 = 39425^2 + 25414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200202021 - 2¹⁰ = 2200200997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200201993 and 2200202011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100101010 + 1100101011.

It is an arithmetic number, because the mean of its divisors is an integer number (1100101011).

Almost surely, 2^2200202021 is an apocalyptic number.

It is an amenable number.

2200202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200202021 is an equidigital number, since it uses as much as digits as its factorization.

2200202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2200202021 is about 46906.3110998936. The cubic root of 2200202021 is about 1300.6312557518.

Adding to 2200202021 its reverse (1202020022), we get a palindrome (3402222043).

The spelling of 2200202021 in words is "two billion, two hundred million, two hundred two thousand, twenty-one".