20101200120112 has 40 divisors (see below), whose sum is σ = 40397057213040. Its totient is φ = 9678011400960.

The previous prime is 20101200120107. The next prime is 20101200120119. The reversal of 20101200120112 is 21102100210102.

It is a junction number, because it is equal to n+sod(n) for n = 20101200120092 and 20101200120101.

It is not an unprimeable number, because it can be changed into a prime (20101200120119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57898714 + ... + 58244857.

It is an arithmetic number, because the mean of its divisors is an integer number (1009926430326).

Almost surely, 2^{20101200120112} is an apocalyptic number.

It is an amenable number.

20101200120112 is an abundant number, since it is smaller than the sum of its proper divisors (20295857092928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101200120112 is a wasteful number, since it uses less digits than its factorization.

20101200120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116143981 (or 116143975 counting only the distinct ones).

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

Adding to 20101200120112 its reverse (21102100210102), we get a palindrome (41203300330214).

The spelling of 20101200120112 in words is "twenty trillion, one hundred one billion, two hundred million, one hundred twenty thousand, one hundred twelve".