121111132211101 has 16 divisors (see below), whose sum is σ = 122281640166400. Its totient is φ = 119941719055488.

The previous prime is 121111132211033. The next prime is 121111132211107. The reversal of 121111132211101 is 101112231111121.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121111132211101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111132211107) 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, 2014225300 + ... + 2014285426.

It is an arithmetic number, because the mean of its divisors is an integer number (7642602510400).

Almost surely, 2^{121111132211101} is an apocalyptic number.

It is an amenable number.

121111132211101 is a deficient number, since it is larger than the sum of its proper divisors (1170507955299).

121111132211101 is a wasteful number, since it uses less digits than its factorization.

121111132211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68908.

The product of its (nonzero) digits is 24, while the sum is 19.

Adding to 121111132211101 its reverse (101112231111121), we get a palindrome (222223363322222).

The spelling of 121111132211101 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred thirty-two million, two hundred eleven thousand, one hundred one".