112012121312 has 48 divisors (see below), whose sum is σ = 271413993312. Its totient is φ = 44312486400.

The previous prime is 112012121251. The next prime is 112012121317. The reversal of 112012121312 is 213121210211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012121317) 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, 19229939 + ... + 19235762.

It is an arithmetic number, because the mean of its divisors is an integer number (5654458194).

Almost surely, 2^112012121312 is an apocalyptic number.

It is an amenable number.

112012121312 is an abundant number, since it is smaller than the sum of its proper divisors (159401872000).

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

112012121312 is a wasteful number, since it uses less digits than its factorization.

112012121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38465731 (or 38465723 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 112012121312 its reverse (213121210211), we get a palindrome (325133331523).

The spelling of 112012121312 in words is "one hundred twelve billion, twelve million, one hundred twenty-one thousand, three hundred twelve".