20124012012 has 48 divisors (see below), whose sum is σ = 52766649600. Its totient is φ = 5922785088.

The previous prime is 20124012011. The next prime is 20124012023. The reversal of 20124012012 is 21021042102.

It is a junction number, because it is equal to n+sod(n) for n = 20124011982 and 20124012000.

It is not an unprimeable number, because it can be changed into a prime (20124012011) 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, 2800762 + ... + 2807937.

It is an arithmetic number, because the mean of its divisors is an integer number (1099305200).

Almost surely, 2^20124012012 is an apocalyptic number.

It is an amenable number.

20124012012 is an abundant number, since it is smaller than the sum of its proper divisors (32642637588).

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

20124012012 is a wasteful number, since it uses less digits than its factorization.

20124012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608742 (or 5608740 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20124012012 its reverse (21021042102), we get a palindrome (41145054114).

The spelling of 20124012012 in words is "twenty billion, one hundred twenty-four million, twelve thousand, twelve".