1121201120011 has 16 divisors (see below), whose sum is σ = 1286403326208. Its totient is φ = 957263882400.

The previous prime is 1121201119981. The next prime is 1121201120051. The reversal of 1121201120011 is 1100211021211.

It is a happy number.

It is not a de Polignac number, because 1121201120011 - 2⁵ = 1121201119979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121201119973 and 1121201120000.

It is not an unprimeable number, because it can be changed into a prime (1121201120051) 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 15 ways as a sum of consecutive naturals, for example, 1538376 + ... + 2146858.

It is an arithmetic number, because the mean of its divisors is an integer number (80400207888).

Almost surely, 2^{1121201120011} is an apocalyptic number.

1121201120011 is a deficient number, since it is larger than the sum of its proper divisors (165202206197).

1121201120011 is an equidigital number, since it uses as much as digits as its factorization.

1121201120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609522.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121201120011 its reverse (1100211021211), we get a palindrome (2221412141222).

The spelling of 1121201120011 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty thousand, eleven".