1121200220011 has 4 divisors (see below), whose sum is σ = 1121202375832. Its totient is φ = 1121198064192.

The previous prime is 1121200219957. The next prime is 1121200220017. The reversal of 1121200220011 is 1100220021211.

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 1121200220011 - 2⁹ = 1121200219499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121200219973 and 1121200220000.

It is not an unprimeable number, because it can be changed into a prime (1121200220017) 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, 236380 + ... + 1516006.

It is an arithmetic number, because the mean of its divisors is an integer number (280300593958).

Almost surely, 2^{1121200220011} is an apocalyptic number.

1121200220011 is a deficient number, since it is larger than the sum of its proper divisors (2155821).

1121200220011 is an equidigital number, since it uses as much as digits as its factorization.

1121200220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155820.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121200220011 its reverse (1100220021211), we get a palindrome (2221420241222).

The spelling of 1121200220011 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred twenty thousand, eleven".