2222121211211 has 16 divisors (see below), whose sum is σ = 2452833091296. Its totient is φ = 1996269600000.

The previous prime is 2222121211207. The next prime is 2222121211213. The reversal of 2222121211211 is 1121121212222.

It is a cyclic number.

It is not a de Polignac number, because 2222121211211 - 2² = 2222121211207 is a prime.

It is a super-3 number, since 3×2222121211211³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222121211213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1340660 + ... + 2498321.

It is an arithmetic number, because the mean of its divisors is an integer number (153302068206).

Almost surely, 2^{2222121211211} is an apocalyptic number.

2222121211211 is a deficient number, since it is larger than the sum of its proper divisors (230711880085).

2222121211211 is a wasteful number, since it uses less digits than its factorization.

2222121211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839614.

The product of its digits is 128, while the sum is 20.

Adding to 2222121211211 its reverse (1121121212222), we get a palindrome (3343242423433).

The spelling of 2222121211211 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred eleven".