1201110121241 has 4 divisors (see below), whose sum is σ = 1203884048052. Its totient is φ = 1198336194432.

The previous prime is 1201110121217. The next prime is 1201110121247. The reversal of 1201110121241 is 1421210111021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 241846584841 + 959263536400 = 491779^2 + 979420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201110121241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201110121247) 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, 1386962756 + ... + 1386963621.

It is an arithmetic number, because the mean of its divisors is an integer number (300971012013).

Almost surely, 2^{1201110121241} is an apocalyptic number.

It is an amenable number.

1201110121241 is a deficient number, since it is larger than the sum of its proper divisors (2773926811).

1201110121241 is an equidigital number, since it uses as much as digits as its factorization.

1201110121241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773926810.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1201110121241 its reverse (1421210111021), we get a palindrome (2622320232262).

The spelling of 1201110121241 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred twenty-one thousand, two hundred forty-one".