2111100222211 has 4 divisors (see below), whose sum is σ = 2111665749712. Its totient is φ = 2110534694712.

The previous prime is 2111100222181. The next prime is 2111100222263. The reversal of 2111100222211 is 1122220011112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111100222211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111100022211) 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, 282758151 + ... + 282765616.

It is an arithmetic number, because the mean of its divisors is an integer number (527916437428).

Almost surely, 2^{2111100222211} is an apocalyptic number.

2111100222211 is a deficient number, since it is larger than the sum of its proper divisors (565527501).

2111100222211 is an equidigital number, since it uses as much as digits as its factorization.

2111100222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565527500.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111100222211 its reverse (1122220011112), we get a palindrome (3233320233323).

The spelling of 2111100222211 in words is "two trillion, one hundred eleven billion, one hundred million, two hundred twenty-two thousand, two hundred eleven".