2211681813411 has 96 divisors (see below), whose sum is σ = 3697169203200. Its totient is φ = 1168733966400.

The previous prime is 2211681813401. The next prime is 2211681813443. The reversal of 2211681813411 is 1143181861122.

It is a happy number.

It is not a de Polignac number, because 2211681813411 - 2¹³ = 2211681805219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211681813411.

It is not an unprimeable number, because it can be changed into a prime (2211681813401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 234308430 + ... + 234317868.

It is an arithmetic number, because the mean of its divisors is an integer number (38512179200).

Almost surely, 2^{2211681813411} is an apocalyptic number.

2211681813411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2211681813411 is a deficient number, since it is larger than the sum of its proper divisors (1485487389789).

2211681813411 is a wasteful number, since it uses less digits than its factorization.

2211681813411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469 (or 11462 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The spelling of 2211681813411 in words is "two trillion, two hundred eleven billion, six hundred eighty-one million, eight hundred thirteen thousand, four hundred eleven".