2212220211211 has 4 divisors (see below), whose sum is σ = 2288503666800. Its totient is φ = 2135936755624.

The previous prime is 2212220211209. The next prime is 2212220211221. The reversal of 2212220211211 is 1121120222122.

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 2212220211211 - 2¹ = 2212220211209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212220211221) 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, 38141727751 + ... + 38141727808.

It is an arithmetic number, because the mean of its divisors is an integer number (572125916700).

Almost surely, 2^{2212220211211} is an apocalyptic number.

2212220211211 is a deficient number, since it is larger than the sum of its proper divisors (76283455589).

2212220211211 is an equidigital number, since it uses as much as digits as its factorization.

2212220211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76283455588.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2212220211211 its reverse (1121120222122), we get a palindrome (3333340433333).

The spelling of 2212220211211 in words is "two trillion, two hundred twelve billion, two hundred twenty million, two hundred eleven thousand, two hundred eleven".