2112201022211 has 4 divisors (see below), whose sum is σ = 2413944025392. Its totient is φ = 1810458019032.

The previous prime is 2112201022159. The next prime is 2112201022241. The reversal of 2112201022211 is 1122201022112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112201022211 is a prime.

It is a super-2 number, since 2×2112201022211² (a number of 25 digits) contains 22 as substring.

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 2112201022211.

It is not an unprimeable number, because it can be changed into a prime (2112201022241) 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, 150871501580 + ... + 150871501593.

It is an arithmetic number, because the mean of its divisors is an integer number (603486006348).

Almost surely, 2^{2112201022211} is an apocalyptic number.

2112201022211 is a deficient number, since it is larger than the sum of its proper divisors (301743003181).

2112201022211 is an equidigital number, since it uses as much as digits as its factorization.

2112201022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301743003180.

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

Adding to 2112201022211 its reverse (1122201022112), we get a palindrome (3234402044323).

Subtracting from 2112201022211 its reverse (1122201022112), we obtain a palindrome (990000000099).

The spelling of 2112201022211 in words is "two trillion, one hundred twelve billion, two hundred one million, twenty-two thousand, two hundred eleven".