1121121200211 has 4 divisors (see below), whose sum is σ = 1494828266952. Its totient is φ = 747414133472.

The previous prime is 1121121200201. The next prime is 1121121200239. The reversal of 1121121200211 is 1120021211211.

It is a happy number.

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 1121121200211 - 2²³ = 1121112811603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121121200201) 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, 186853533366 + ... + 186853533371.

It is an arithmetic number, because the mean of its divisors is an integer number (373707066738).

Almost surely, 2^{1121121200211} is an apocalyptic number.

1121121200211 is a deficient number, since it is larger than the sum of its proper divisors (373707066741).

1121121200211 is an equidigital number, since it uses as much as digits as its factorization.

1121121200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373707066740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121121200211 its reverse (1120021211211), we get a palindrome (2241142411422).

The spelling of 1121121200211 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".