20112040012 has 12 divisors (see below), whose sum is σ = 35326912320. Its totient is φ = 10018636496.

The previous prime is 20112040007. The next prime is 20112040021. The reversal of 20112040012 is 21004021102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112039974 and 20112040001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9344668 + ... + 9346819.

It is an arithmetic number, because the mean of its divisors is an integer number (2943909360).

Almost surely, 2^20112040012 is an apocalyptic number.

It is an amenable number.

20112040012 is a deficient number, since it is larger than the sum of its proper divisors (15214872308).

20112040012 is a wasteful number, since it uses less digits than its factorization.

20112040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18691760 (or 18691758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20112040012 its reverse (21004021102), we get a palindrome (41116061114).

The spelling of 20112040012 in words is "twenty billion, one hundred twelve million, forty thousand, twelve".