20121110002111 has 8 divisors (see below), whose sum is σ = 20996485017984. Its totient is φ = 19245780331800.

The previous prime is 20121110002093. The next prime is 20121110002129. The reversal of 20121110002111 is 11120001112102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20121110002093) and next prime (20121110002129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121110002111 - 2⁵ = 20121110002079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121110002091 and 20121110002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121110002151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10428081 + ... + 12206026.

It is an arithmetic number, because the mean of its divisors is an integer number (2624560627248).

Almost surely, 2^{20121110002111} is an apocalyptic number.

20121110002111 is a deficient number, since it is larger than the sum of its proper divisors (875375015873).

20121110002111 is a wasteful number, since it uses less digits than its factorization.

20121110002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22672781.

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

Adding to 20121110002111 its reverse (11120001112102), we get a palindrome (31241111114213).

The spelling of 20121110002111 in words is "twenty trillion, one hundred twenty-one billion, one hundred ten million, two thousand, one hundred eleven".