20001012001112 has 16 divisors (see below), whose sum is σ = 37582895127840. Its totient is φ = 9978906633696.

The previous prime is 20001012001111. The next prime is 20001012001177. The reversal of 20001012001112 is 21110021010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001012001093 and 20001012001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001012001111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2699916923 + ... + 2699924330.

It is an arithmetic number, because the mean of its divisors is an integer number (2348930945490).

Almost surely, 2^{20001012001112} is an apocalyptic number.

It is an amenable number.

20001012001112 is a deficient number, since it is larger than the sum of its proper divisors (17581883126728).

20001012001112 is a wasteful number, since it uses less digits than its factorization.

20001012001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399841722 (or 5399841718 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20001012001112 its reverse (21110021010002), we get a palindrome (41111033011114).

The spelling of 20001012001112 in words is "twenty trillion, one billion, twelve million, one thousand, one hundred twelve".