20010122202211 has 2 divisors, whose sum is σ = 20010122202212. Its totient is φ = 20010122202210.

The previous prime is 20010122202173. The next prime is 20010122202241. The reversal of 20010122202211 is 11220222101002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20010122202211 - 2²⁵ = 20010088647779 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010122202241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005061101105 + 10005061101106.

It is an arithmetic number, because the mean of its divisors is an integer number (10005061101106).

Almost surely, 2^{20010122202211} is an apocalyptic number.

20010122202211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010122202211 is an equidigital number, since it uses as much as digits as its factorization.

20010122202211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20010122202211 its reverse (11220222101002), we get a palindrome (31230344303213).

It can be divided in two parts, 20010 and 122202211, that added together give a palindrome (122222221).

The spelling of 20010122202211 in words is "twenty trillion, ten billion, one hundred twenty-two million, two hundred two thousand, two hundred eleven".