211122020120201 has 4 divisors (see below), whose sum is σ = 211128460923600. Its totient is φ = 211115579316804.

The previous prime is 211122020120149. The next prime is 211122020120227. The reversal of 211122020120201 is 102021020221112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211122020120201 - 2²² = 211122015925897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211122020120201.

It is not an unprimeable number, because it can be changed into a prime (211122020120281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220352531 + ... + 3220418088.

It is an arithmetic number, because the mean of its divisors is an integer number (52782115230900).

Almost surely, 2^{211122020120201} is an apocalyptic number.

It is an amenable number.

211122020120201 is a deficient number, since it is larger than the sum of its proper divisors (6440803399).

211122020120201 is an equidigital number, since it uses as much as digits as its factorization.

211122020120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440803398.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211122020120201 its reverse (102021020221112), we get a palindrome (313143040341313).

The spelling of 211122020120201 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty million, one hundred twenty thousand, two hundred one".