2221111110211 has 16 divisors (see below), whose sum is σ = 2595995504640. Its totient is φ = 1861099624800.

The previous prime is 2221111110203. The next prime is 2221111110217. The reversal of 2221111110211 is 1120111111222.

It is a cyclic number.

It is not a de Polignac number, because 2221111110211 - 2³ = 2221111110203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221111110217) 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, 19827691 + ... + 19939396.

It is an arithmetic number, because the mean of its divisors is an integer number (162249719040).

Almost surely, 2^{2221111110211} is an apocalyptic number.

2221111110211 is a deficient number, since it is larger than the sum of its proper divisors (374884394429).

2221111110211 is a wasteful number, since it uses less digits than its factorization.

2221111110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39767274.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 2221111110211 its reverse (1120111111222), we get a palindrome (3341222221433).

The spelling of 2221111110211 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred ten thousand, two hundred eleven".