2212111012211 has 4 divisors (see below), whose sum is σ = 2212122552000. Its totient is φ = 2212099472424.

The previous prime is 2212111012187. The next prime is 2212111012229. The reversal of 2212111012211 is 1122101112122.

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 2212111012211 - 2³⁸ = 1937233105267 is a prime.

It is a super-2 number, since 2×2212111012211² (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 2212111012211.

It is not an unprimeable number, because it can be changed into a prime (2212111012271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5477411 + ... + 5867388.

It is an arithmetic number, because the mean of its divisors is an integer number (553030638000).

Almost surely, 2^{2212111012211} is an apocalyptic number.

2212111012211 is a deficient number, since it is larger than the sum of its proper divisors (11539789).

2212111012211 is a wasteful number, since it uses less digits than its factorization.

2212111012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11539788.

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

Adding to 2212111012211 its reverse (1122101112122), we get a palindrome (3334212124333).

The spelling of 2212111012211 in words is "two trillion, two hundred twelve billion, one hundred eleven million, twelve thousand, two hundred eleven".