12202000021 has 2 divisors, whose sum is σ = 12202000022. Its totient is φ = 12202000020.

The previous prime is 12202000003. The next prime is 12202000039. The reversal of 12202000021 is 12000020221.

It is a balanced prime because it is at equal distance from previous prime (12202000003) and next prime (12202000039).

It can be written as a sum of positive squares in only one way, i.e., 7317947025 + 4884052996 = 85545^2 + 69886^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202000021 - 2⁵ = 12201999989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201999971 and 12202000007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202000721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101000010 + 6101000011.

It is an arithmetic number, because the mean of its divisors is an integer number (6101000011).

Almost surely, 2^12202000021 is an apocalyptic number.

It is an amenable number.

12202000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202000021 is an equidigital number, since it uses as much as digits as its factorization.

12202000021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12202000021 its reverse (12000020221), we get a palindrome (24202020242).

The spelling of 12202000021 in words is "twelve billion, two hundred two million, twenty-one", and thus it is an aban number.