40012100112 has 80 divisors (see below), whose sum is σ = 104152530240. Its totient is φ = 13236082176.

The previous prime is 40012100047. The next prime is 40012100119. The reversal of 40012100112 is 21100121004.

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 (40012100119) 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, 3478723 + ... + 3490205.

It is an arithmetic number, because the mean of its divisors is an integer number (1301906628).

Almost surely, 2^40012100112 is an apocalyptic number.

It is an amenable number.

40012100112 is an abundant number, since it is smaller than the sum of its proper divisors (64140430128).

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

40012100112 is a wasteful number, since it uses less digits than its factorization.

40012100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12040 (or 12034 counting only the distinct ones).

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

Adding to 40012100112 its reverse (21100121004), we get a palindrome (61112221116).

The spelling of 40012100112 in words is "forty billion, twelve million, one hundred thousand, one hundred twelve".