20011112012102 has 48 divisors (see below), whose sum is σ = 32206624358400. Its totient is φ = 9322395264000.

The previous prime is 20011112012093. The next prime is 20011112012123. The reversal of 20011112012102 is 20121021111002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478153274 + ... + 478195122.

It is an arithmetic number, because the mean of its divisors is an integer number (670971340800).

Almost surely, 2^{20011112012102} is an apocalyptic number.

20011112012102 is a deficient number, since it is larger than the sum of its proper divisors (12195512346298).

20011112012102 is a wasteful number, since it uses less digits than its factorization.

20011112012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50177 (or 50160 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20011112012102 its reverse (20121021111002), we get a palindrome (40132133123104).

The spelling of 20011112012102 in words is "twenty trillion, eleven billion, one hundred twelve million, twelve thousand, one hundred two".