1201120110001 has 16 divisors (see below), whose sum is σ = 1401670036224. Its totient is φ = 1008016406784.

The previous prime is 1201120109951. The next prime is 1201120110011. The reversal of 1201120110001 is 1000110211021.

It is a cyclic number.

It is not a de Polignac number, because 1201120110001 - 2⁹ = 1201120109489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201120110001.

It is not an unprimeable number, because it can be changed into a prime (1201120110011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8508565 + ... + 8648578.

It is an arithmetic number, because the mean of its divisors is an integer number (87604377264).

Almost surely, 2^{1201120110001} is an apocalyptic number.

It is an amenable number.

1201120110001 is a deficient number, since it is larger than the sum of its proper divisors (200549926223).

1201120110001 is a wasteful number, since it uses less digits than its factorization.

1201120110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157360.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201120110001 its reverse (1000110211021), we get a palindrome (2201230321022).

The spelling of 1201120110001 in words is "one trillion, two hundred one billion, one hundred twenty million, one hundred ten thousand, one".