20220111001 has 2 divisors, whose sum is σ = 20220111002. Its totient is φ = 20220111000.

The previous prime is 20220110993. The next prime is 20220111053. The reversal of 20220111001 is 10011102202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17095301001 + 3124810000 = 130749^2 + 55900^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220111001 - 2³ = 20220110993 is a prime.

It is a super-2 number, since 2×20220111001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20220511001) 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, 10110055500 + 10110055501.

It is an arithmetic number, because the mean of its divisors is an integer number (10110055501).

Almost surely, 2^20220111001 is an apocalyptic number.

It is an amenable number.

20220111001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220111001 is an equidigital number, since it uses as much as digits as its factorization.

20220111001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20220111001 its reverse (10011102202), we get a palindrome (30231213203).

The spelling of 20220111001 in words is "twenty billion, two hundred twenty million, one hundred eleven thousand, one".