202122220211 has 2 divisors, whose sum is σ = 202122220212. Its totient is φ = 202122220210.

The previous prime is 202122220177. The next prime is 202122220249. The reversal of 202122220211 is 112022221202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202122220211 - 2⁶ = 202122220147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202122220211.

It is not a weakly prime, because it can be changed into another prime (202122220271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101061110105 + 101061110106.

It is an arithmetic number, because the mean of its divisors is an integer number (101061110106).

Almost surely, 2^202122220211 is an apocalyptic number.

202122220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

202122220211 is an equidigital number, since it uses as much as digits as its factorization.

202122220211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202122220211 its reverse (112022221202), we get a palindrome (314144441413).

Subtracting from 202122220211 its reverse (112022221202), we obtain a palindrome (90099999009).

The spelling of 202122220211 in words is "two hundred two billion, one hundred twenty-two million, two hundred twenty thousand, two hundred eleven".