10012040112 has 80 divisors (see below), whose sum is σ = 27550236672. Its totient is φ = 3122181120.

The previous prime is 10012040099. The next prime is 10012040113. The reversal of 10012040112 is 21104021001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10012040113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99537 + ... + 173007.

Almost surely, 2^10012040112 is an apocalyptic number.

10012040112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10012040112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13775118336).

10012040112 is an abundant number, since it is smaller than the sum of its proper divisors (17538196560).

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

10012040112 is a wasteful number, since it uses less digits than its factorization.

10012040112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73666 (or 73660 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10012040112 its reverse (21104021001), we get a palindrome (31116061113).

The spelling of 10012040112 in words is "ten billion, twelve million, forty thousand, one hundred twelve".