1111213022211 has 6 divisors (see below), whose sum is σ = 1605085476540. Its totient is φ = 740808681468.

The previous prime is 1111213022159. The next prime is 1111213022243. The reversal of 1111213022211 is 1122203121111.

It is a happy number.

It is not a de Polignac number, because 1111213022211 - 2¹⁵ = 1111212989443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111213022291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61734056781 + ... + 61734056798.

It is an arithmetic number, because the mean of its divisors is an integer number (267514246090).

Almost surely, 2^{1111213022211} is an apocalyptic number.

1111213022211 is a deficient number, since it is larger than the sum of its proper divisors (493872454329).

1111213022211 is a wasteful number, since it uses less digits than its factorization.

1111213022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123468113585 (or 123468113582 counting only the distinct ones).

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

Adding to 1111213022211 its reverse (1122203121111), we get a palindrome (2233416143322).

The spelling of 1111213022211 in words is "one trillion, one hundred eleven billion, two hundred thirteen million, twenty-two thousand, two hundred eleven".