1000020012 has 24 divisors (see below), whose sum is σ = 2390292912. Its totient is φ = 325209600.

The previous prime is 1000020011. The next prime is 1000020023. The reversal of 1000020012 is 2100200001.

It is a happy number.

1000020012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (1000020011) 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, 1015789 + ... + 1016772.

It is an arithmetic number, because the mean of its divisors is an integer number (99595538).

Almost surely, 2^1000020012 is an apocalyptic number.

1000020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000020012 is an abundant number, since it is smaller than the sum of its proper divisors (1390272900).

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

1000020012 is a wasteful number, since it uses less digits than its factorization.

1000020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032609 (or 2032607 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1000020012 is about 31623.0930176034. The cubic root of 1000020012 is about 1000.0066706222.

Adding to 1000020012 its reverse (2100200001), we get a palindrome (3100220013).

The spelling of 1000020012 in words is "one billion, twenty thousand, twelve".