20102211001 has 2 divisors, whose sum is σ = 20102211002. Its totient is φ = 20102211000.

The previous prime is 20102210977. The next prime is 20102211013. The reversal of 20102211001 is 10011220102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10805394601 + 9296816400 = 103949^2 + 96420^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102211001 - 2¹¹ = 20102208953 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102211401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051105500 + 10051105501.

It is an arithmetic number, because the mean of its divisors is an integer number (10051105501).

Almost surely, 2^20102211001 is an apocalyptic number.

It is an amenable number.

20102211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102211001 is an equidigital number, since it uses as much as digits as its factorization.

20102211001 is an evil number, because the sum of its binary digits is even.

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

Adding to 20102211001 its reverse (10011220102), we get a palindrome (30113431103).

The spelling of 20102211001 in words is "twenty billion, one hundred two million, two hundred eleven thousand, one".