212220202001 has 2 divisors, whose sum is σ = 212220202002. Its totient is φ = 212220202000.

The previous prime is 212220201997. The next prime is 212220202013. The reversal of 212220202001 is 100202022212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197384718400 + 14835483601 = 444280^2 + 121801^2 .

It is a cyclic number.

It is not a de Polignac number, because 212220202001 - 2² = 212220201997 is a prime.

It is not a weakly prime, because it can be changed into another prime (212220201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110101000 + 106110101001.

It is an arithmetic number, because the mean of its divisors is an integer number (106110101001).

Almost surely, 2^212220202001 is an apocalyptic number.

It is an amenable number.

212220202001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220202001 is an equidigital number, since it uses as much as digits as its factorization.

212220202001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212220202001 its reverse (100202022212), we get a palindrome (312422224213).

The spelling of 212220202001 in words is "two hundred twelve billion, two hundred twenty million, two hundred two thousand, one".