2201220220211 has 4 divisors (see below), whose sum is σ = 2202006092424. Its totient is φ = 2200434348000.

The previous prime is 2201220220183. The next prime is 2201220220279. The reversal of 2201220220211 is 1120220221022.

It is a happy number.

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 2201220220211 - 2²² = 2201216025907 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 2201220220211.

It is not an unprimeable number, because it can be changed into a prime (2201220223211) 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, 392931905 + ... + 392937506.

It is an arithmetic number, because the mean of its divisors is an integer number (550501523106).

Almost surely, 2^{2201220220211} is an apocalyptic number.

2201220220211 is a deficient number, since it is larger than the sum of its proper divisors (785872213).

2201220220211 is an equidigital number, since it uses as much as digits as its factorization.

2201220220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785872212.

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

Adding to 2201220220211 its reverse (1120220221022), we get a palindrome (3321440441233).

The spelling of 2201220220211 in words is "two trillion, two hundred one billion, two hundred twenty million, two hundred twenty thousand, two hundred eleven".