20260211 has 2 divisors, whose sum is σ = 20260212. Its totient is φ = 20260210.

The previous prime is 20260199. The next prime is 20260237. The reversal of 20260211 is 11206202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20260211 is a prime.

It is a super-2 number, since 2×20260211² = 820952299529042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20260271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10130105 + 10130106.

It is an arithmetic number, because the mean of its divisors is an integer number (10130106).

Almost surely, 2^20260211 is an apocalyptic number.

20260211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20260211 is an equidigital number, since it uses as much as digits as its factorization.

20260211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20260211 is about 4501.1344125676. The cubic root of 20260211 is about 272.6138950990.

Adding to 20260211 its reverse (11206202), we get a palindrome (31466413).

The spelling of 20260211 in words is "twenty million, two hundred sixty thousand, two hundred eleven".