1121111111211 has 128 divisors (see below), whose sum is σ = 1999446736896. Its totient is φ = 542597045760.

The previous prime is 1121111111207. The next prime is 1121111111227.

It is a happy number.

1121111111211 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1121111111211 - 2² = 1121111111207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121111111201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16460950 + ... + 16528916.

It is an arithmetic number, because the mean of its divisors is an integer number (15620677632).

Almost surely, 2^{1121111111211} is an apocalyptic number.

1121111111211 is a deficient number, since it is larger than the sum of its proper divisors (878335625685).

1121111111211 is a wasteful number, since it uses less digits than its factorization.

1121111111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68121.

The product of its digits is 4, while the sum is 15.

The spelling of 1121111111211 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, one hundred eleven thousand, two hundred eleven".