202222002101081 has 2 divisors, whose sum is σ = 202222002101082. Its totient is φ = 202222002101080.

The previous prime is 202222002101071. The next prime is 202222002101227. The reversal of 202222002101081 is 180101200222202.

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., 176986198675456 + 25235803425625 = 13303616^2 + 5023525^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222002101081 - 2³⁴ = 202204822231897 is a prime.

It is a super-2 number, since 2×202222002101081² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (202222002101011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111001050540 + 101111001050541.

It is an arithmetic number, because the mean of its divisors is an integer number (101111001050541).

Almost surely, 2^{202222002101081} is an apocalyptic number.

It is an amenable number.

202222002101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

202222002101081 is an equidigital number, since it uses as much as digits as its factorization.

202222002101081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 202222002101081 its reverse (180101200222202), we get a palindrome (382323202323283).

The spelling of 202222002101081 in words is "two hundred two trillion, two hundred twenty-two billion, two million, one hundred one thousand, eighty-one".