20001012120112 has 40 divisors (see below), whose sum is σ = 39432880598400. Its totient is φ = 9825164820480.

The previous prime is 20001012120101. The next prime is 20001012120233. The reversal of 20001012120112 is 21102121010002.

It is a super-2 number, since 2×20001012120112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001012120092 and 20001012120101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11030737 + ... + 12715312.

It is an arithmetic number, because the mean of its divisors is an integer number (985822014960).

Almost surely, 2^{20001012120112} is an apocalyptic number.

It is an amenable number.

20001012120112 is a deficient number, since it is larger than the sum of its proper divisors (19431868478288).

20001012120112 is a wasteful number, since it uses less digits than its factorization.

20001012120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23746981 (or 23746975 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20001012120112 its reverse (21102121010002), we get a palindrome (41103133130114).

The spelling of 20001012120112 in words is "twenty trillion, one billion, twelve million, one hundred twenty thousand, one hundred twelve".