1121111200211 has 4 divisors (see below), whose sum is σ = 1123852303800. Its totient is φ = 1118370096624.

The previous prime is 1121111200127. The next prime is 1121111200241. The reversal of 1121111200211 is 1120021111211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121111200211 - 2³⁸ = 846233293267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121111200241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370551181 + ... + 1370551998.

It is an arithmetic number, because the mean of its divisors is an integer number (280963075950).

Almost surely, 2^{1121111200211} is an apocalyptic number.

1121111200211 is a deficient number, since it is larger than the sum of its proper divisors (2741103589).

1121111200211 is an equidigital number, since it uses as much as digits as its factorization.

1121111200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741103588.

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

Adding to 1121111200211 its reverse (1120021111211), we get a palindrome (2241132311422).

It can be divided in two parts, 11211 and 11200211, that multiplied together give a palindrome (125565565521).

The spelling of 1121111200211 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thousand, two hundred eleven".