201222110101211 has 4 divisors (see below), whose sum is σ = 201222646898400. Its totient is φ = 201221573304024.

The previous prime is 201222110101189. The next prime is 201222110101213. The reversal of 201222110101211 is 112101011222102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201222110101211 - 2¹⁸ = 201222109839067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201222110101211.

It is not an unprimeable number, because it can be changed into a prime (201222110101213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267835916 + ... + 268586153.

It is an arithmetic number, because the mean of its divisors is an integer number (50305661724600).

Almost surely, 2^{201222110101211} is an apocalyptic number.

201222110101211 is a deficient number, since it is larger than the sum of its proper divisors (536797189).

201222110101211 is an equidigital number, since it uses as much as digits as its factorization.

201222110101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536797188.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201222110101211 its reverse (112101011222102), we get a palindrome (313323121323313).

The spelling of 201222110101211 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred ten million, one hundred one thousand, two hundred eleven".