212122022201 has 2 divisors, whose sum is σ = 212122022202. Its totient is φ = 212122022200.

The previous prime is 212122022131. The next prime is 212122022207. The reversal of 212122022201 is 102220221212.

It is a happy number.

212122022201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201170190400 + 10951831801 = 448520^2 + 104651^2 .

It is a cyclic number.

It is not a de Polignac number, because 212122022201 - 2¹⁴ = 212122005817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212122022201.

It is not a weakly prime, because it can be changed into another prime (212122022207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106061011100 + 106061011101.

It is an arithmetic number, because the mean of its divisors is an integer number (106061011101).

Almost surely, 2^212122022201 is an apocalyptic number.

It is an amenable number.

212122022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122022201 is an equidigital number, since it uses as much as digits as its factorization.

212122022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212122022201 its reverse (102220221212), we get a palindrome (314342243413).

The spelling of 212122022201 in words is "two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, two hundred one".