1121202011111 has 16 divisors (see below), whose sum is σ = 1393603729728. Its totient is φ = 878321664000.

The previous prime is 1121202011093. The next prime is 1121202011113. The reversal of 1121202011111 is 1111102021211.

It is a cyclic number.

It is not a de Polignac number, because 1121202011111 - 2⁶ = 1121202011047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121202011113) 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, 60985370 + ... + 61003751.

It is an arithmetic number, because the mean of its divisors is an integer number (87100233108).

Almost surely, 2^{1121202011111} is an apocalyptic number.

1121202011111 is a deficient number, since it is larger than the sum of its proper divisors (272401718617).

1121202011111 is a wasteful number, since it uses less digits than its factorization.

1121202011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121989242.

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

Adding to 1121202011111 its reverse (1111102021211), we get a palindrome (2232304032322).

The spelling of 1121202011111 in words is "one trillion, one hundred twenty-one billion, two hundred two million, eleven thousand, one hundred eleven".