20202222220211 has 2 divisors, whose sum is σ = 20202222220212. Its totient is φ = 20202222220210.

The previous prime is 20202222220183. The next prime is 20202222220237. The reversal of 20202222220211 is 11202222220202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202222220211 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202222220111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101111110105 + 10101111110106.

It is an arithmetic number, because the mean of its divisors is an integer number (10101111110106).

Almost surely, 2^{20202222220211} is an apocalyptic number.

20202222220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202222220211 is an equidigital number, since it uses as much as digits as its factorization.

20202222220211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20202222220211 its reverse (11202222220202), we get a palindrome (31404444440413).

Subtracting from 20202222220211 its reverse (11202222220202), we obtain a palindrome (9000000000009).

The spelling of 20202222220211 in words is "twenty trillion, two hundred two billion, two hundred twenty-two million, two hundred twenty thousand, two hundred eleven".