1022122201 has 2 divisors, whose sum is σ = 1022122202. Its totient is φ = 1022122200.

The previous prime is 1022122193. The next prime is 1022122217. The reversal of 1022122201 is 1022212201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993510400 + 28611801 = 31520^2 + 5349^2 .

It is an emirp because it is prime and its reverse (1022212201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022122201 - 2³ = 1022122193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022122291) 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, 511061100 + 511061101.

It is an arithmetic number, because the mean of its divisors is an integer number (511061101).

Almost surely, 2^1022122201 is an apocalyptic number.

It is an amenable number.

1022122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022122201 is an equidigital number, since it uses as much as digits as its factorization.

1022122201 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 13.

The square root of 1022122201 is about 31970.6459271626. The cubic root of 1022122201 is about 1007.3203487347.

Adding to 1022122201 its reverse (1022212201), we get a palindrome (2044334402).

Subtracting 1022122201 from its reverse (1022212201), we obtain a square (90000 = 300²).

The spelling of 1022122201 in words is "one billion, twenty-two million, one hundred twenty-two thousand, two hundred one".