2212112112211 has 4 divisors (see below), whose sum is σ = 2213203437432. Its totient is φ = 2211020786992.

The previous prime is 2212112112209. The next prime is 2212112112227. The reversal of 2212112112211 is 1122112112122.

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 2212112112211 - 2¹ = 2212112112209 is a prime.

It is a super-2 number, since 2×2212112112211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212112118211) 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, 545659570 + ... + 545663623.

It is an arithmetic number, because the mean of its divisors is an integer number (553300859358).

Almost surely, 2^{2212112112211} is an apocalyptic number.

2212112112211 is a deficient number, since it is larger than the sum of its proper divisors (1091325221).

2212112112211 is a wasteful number, since it uses less digits than its factorization.

2212112112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091325220.

The product of its digits is 64, while the sum is 19.

Adding to 2212112112211 its reverse (1122112112122), we get a palindrome (3334224224333).

The spelling of 2212112112211 in words is "two trillion, two hundred twelve billion, one hundred twelve million, one hundred twelve thousand, two hundred eleven".