20101012120112 has 80 divisors (see below), whose sum is σ = 48680514604800. Its totient is φ = 7811430424320.

The previous prime is 20101012120103. The next prime is 20101012120127. The reversal of 20101012120112 is 21102121010102.

It is a super-2 number, since 2×20101012120112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20492162 + ... + 21450657.

It is an arithmetic number, because the mean of its divisors is an integer number (608506432560).

Almost surely, 2^{20101012120112} is an apocalyptic number.

20101012120112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20101012120112 is an abundant number, since it is smaller than the sum of its proper divisors (28579502484688).

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

20101012120112 is a wasteful number, since it uses less digits than its factorization.

20101012120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41943234 (or 41943228 counting only the distinct ones).

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

Adding to 20101012120112 its reverse (21102121010102), we get a palindrome (41203133130214).

The spelling of 20101012120112 in words is "twenty trillion, one hundred one billion, twelve million, one hundred twenty thousand, one hundred twelve".