2211210011111 has 8 divisors (see below), whose sum is σ = 2377112666880. Its totient is φ = 2050259673528.

The previous prime is 2211210011099. The next prime is 2211210011113. The reversal of 2211210011111 is 1111100121122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211210011111 - 2³⁸ = 1936332104167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211210011113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238078621 + ... + 1238080406.

It is an arithmetic number, because the mean of its divisors is an integer number (297139083360).

Almost surely, 2^{2211210011111} is an apocalyptic number.

2211210011111 is a deficient number, since it is larger than the sum of its proper divisors (165902655769).

2211210011111 is a wasteful number, since it uses less digits than its factorization.

2211210011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476159093.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2211210011111 its reverse (1111100121122), we get a palindrome (3322310132233).

The spelling of 2211210011111 in words is "two trillion, two hundred eleven billion, two hundred ten million, eleven thousand, one hundred eleven".