1201120111201 has 16 divisors (see below), whose sum is σ = 1250224200000. Its totient is φ = 1152536164416.

The previous prime is 1201120111187. The next prime is 1201120111237. The reversal of 1201120111201 is 1021110211021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201120111201 - 2¹⁹ = 1201119586913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201120111901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8751415 + ... + 8887603.

It is an arithmetic number, because the mean of its divisors is an integer number (78139012500).

Almost surely, 2^{1201120111201} is an apocalyptic number.

It is an amenable number.

1201120111201 is a deficient number, since it is larger than the sum of its proper divisors (49104088799).

1201120111201 is a wasteful number, since it uses less digits than its factorization.

1201120111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138096.

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

Adding to 1201120111201 its reverse (1021110211021), we get a palindrome (2222230322222).

The spelling of 1201120111201 in words is "one trillion, two hundred one billion, one hundred twenty million, one hundred eleven thousand, two hundred one".