20011112202104 has 16 divisors (see below), whose sum is σ = 38156781742200. Its totient is φ = 9835970404192.

The previous prime is 20011112202097. The next prime is 20011112202187. The reversal of 20011112202104 is 40120221111002.

It is a super-2 number, since 2×20011112202104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21198211607 + ... + 21198212550.

Almost surely, 2^{20011112202104} is an apocalyptic number.

It is an amenable number.

20011112202104 is a deficient number, since it is larger than the sum of its proper divisors (18145669540096).

20011112202104 is a wasteful number, since it uses less digits than its factorization.

20011112202104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42396424222 (or 42396424218 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20011112202104 its reverse (40120221111002), we get a palindrome (60131333313106).

The spelling of 20011112202104 in words is "twenty trillion, eleven billion, one hundred twelve million, two hundred two thousand, one hundred four".