20111001111112 has 32 divisors (see below), whose sum is σ = 37748734257600. Its totient is φ = 10044677467584.

The previous prime is 20111001110989. The next prime is 20111001111169. The reversal of 20111001111112 is 21111110011102.

It is a super-2 number, since 2×20111001111112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111001111092 and 20111001111101.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29124589 + ... + 29807107.

It is an arithmetic number, because the mean of its divisors is an integer number (1179647945550).

Almost surely, 2^{20111001111112} is an apocalyptic number.

It is an amenable number.

20111001111112 is a deficient number, since it is larger than the sum of its proper divisors (17637733146488).

20111001111112 is a wasteful number, since it uses less digits than its factorization.

20111001111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686485 (or 686481 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 20111001111112 its reverse (21111110011102), we get a palindrome (41222111122214).

The spelling of 20111001111112 in words is "twenty trillion, one hundred eleven billion, one million, one hundred eleven thousand, one hundred twelve".