20112012110011 has 8 divisors (see below), whose sum is σ = 21300680108160. Its totient is φ = 18923967274368.

The previous prime is 20112012109999. The next prime is 20112012110017. The reversal of 20112012110011 is 11001121021102.

It is a happy number.

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 20112012110011 - 2⁷ = 20112012109883 is a prime.

It is a super-2 number, since 2×20112012110011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112012109973 and 20112012110000.

It is not an unprimeable number, because it can be changed into a prime (20112012110017) 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, 155724171 + ... + 155853268.

It is an arithmetic number, because the mean of its divisors is an integer number (2662585013520).

Almost surely, 2^{20112012110011} is an apocalyptic number.

20112012110011 is a deficient number, since it is larger than the sum of its proper divisors (1188667998149).

20112012110011 is a wasteful number, since it uses less digits than its factorization.

20112012110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311581253.

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

Adding to 20112012110011 its reverse (11001121021102), we get a palindrome (31113133131113).

The spelling of 20112012110011 in words is "twenty trillion, one hundred twelve billion, twelve million, one hundred ten thousand, eleven".