20112102211 has 2 divisors, whose sum is σ = 20112102212. Its totient is φ = 20112102210.

The previous prime is 20112102193. The next prime is 20112102223. The reversal of 20112102211 is 11220121102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112102211 - 2¹⁵ = 20112069443 is a prime.

It is a super-2 number, since 2×20112102211² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112102191 and 20112102200.

It is not a weakly prime, because it can be changed into another prime (20112102611) 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, 10056051105 + 10056051106.

It is an arithmetic number, because the mean of its divisors is an integer number (10056051106).

Almost surely, 2^20112102211 is an apocalyptic number.

20112102211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112102211 is an equidigital number, since it uses as much as digits as its factorization.

20112102211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20112102211 its reverse (11220121102), we get a palindrome (31332223313).

The spelling of 20112102211 in words is "twenty billion, one hundred twelve million, one hundred two thousand, two hundred eleven".