10012020012 has 48 divisors (see below), whose sum is σ = 25964266720. Its totient is φ = 3336417216.

The previous prime is 10012019993. The next prime is 10012020013. The reversal of 10012020012 is 21002021001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10012019976 and 10012020003.

It is not an unprimeable number, because it can be changed into a prime (10012020013) 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, 459918 + ... + 481194.

Almost surely, 2^10012020012 is an apocalyptic number.

10012020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10012020012 is an abundant number, since it is smaller than the sum of its proper divisors (15952246708).

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

10012020012 is a wasteful number, since it uses less digits than its factorization.

10012020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25647 (or 25639 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10012020012 its reverse (21002021001), we get a palindrome (31014041013).

The spelling of 10012020012 in words is "ten billion, twelve million, twenty thousand, twelve".