2011222113111 has 80 divisors (see below), whose sum is σ = 3209651343360. Its totient is φ = 1252282731840.

The previous prime is 2011222113107. The next prime is 2011222113181. The reversal of 2011222113111 is 1113112221102.

It is a happy number.

2011222113111 is a `hidden beast` number, since 20 + 1 + 122 + 211 + 311 + 1 = 666.

It is not a de Polignac number, because 2011222113111 - 2² = 2011222113107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011222113181) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 233234946 + ... + 233243568.

It is an arithmetic number, because the mean of its divisors is an integer number (40120641792).

Almost surely, 2^{2011222113111} is an apocalyptic number.

2011222113111 is a deficient number, since it is larger than the sum of its proper divisors (1198429230249).

2011222113111 is a wasteful number, since it uses less digits than its factorization.

2011222113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898 (or 11889 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 2011222113111 its reverse (1113112221102), we get a palindrome (3124334334213).

The spelling of 2011222113111 in words is "two trillion, eleven billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred eleven".