1021202212201 has 2 divisors, whose sum is σ = 1021202212202. Its totient is φ = 1021202212200.

The previous prime is 1021202212187. The next prime is 1021202212237. The reversal of 1021202212201 is 1022122021201.

It is a happy number.

1021202212201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007925642025 + 13276570176 = 1003955^2 + 115224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021202212201 - 2⁷ = 1021202212073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021202212241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510601106100 + 510601106101.

It is an arithmetic number, because the mean of its divisors is an integer number (510601106101).

Almost surely, 2^{1021202212201} is an apocalyptic number.

It is an amenable number.

1021202212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021202212201 is an equidigital number, since it uses as much as digits as its factorization.

1021202212201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021202212201 its reverse (1022122021201), we get a palindrome (2043324233402).

The spelling of 1021202212201 in words is "one trillion, twenty-one billion, two hundred two million, two hundred twelve thousand, two hundred one".