1111120121201 has 32 divisors (see below), whose sum is σ = 1250587054080. Its totient is φ = 982026460800.

The previous prime is 1111120121197. The next prime is 1111120121207. The reversal of 1111120121201 is 1021210211111.

It is not a de Polignac number, because 1111120121201 - 2² = 1111120121197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111120121207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81031736 + ... + 81045446.

It is an arithmetic number, because the mean of its divisors is an integer number (39080845440).

Almost surely, 2^{1111120121201} is an apocalyptic number.

It is an amenable number.

1111120121201 is a deficient number, since it is larger than the sum of its proper divisors (139466932879).

1111120121201 is a wasteful number, since it uses less digits than its factorization.

1111120121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317.

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

Adding to 1111120121201 its reverse (1021210211111), we get a palindrome (2132330332312).

It can be divided in two parts, 1111120 and 121201, that added together give a palindrome (1232321).

The spelling of 1111120121201 in words is "one trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".