10020000012 has 96 divisors (see below), whose sum is σ = 26048542464. Its totient is φ = 2971987200.

The previous prime is 10019999947. The next prime is 10020000019. The reversal of 10020000012 is 21000002001.

It is a happy number.

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 (10020000019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3433578 + ... + 3436494.

It is an arithmetic number, because the mean of its divisors is an integer number (271338984).

Almost surely, 2^10020000012 is an apocalyptic number.

10020000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13024271232).

10020000012 is an abundant number, since it is smaller than the sum of its proper divisors (16028542452).

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

10020000012 is a wasteful number, since it uses less digits than its factorization.

10020000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3477 counting only the distinct ones).

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

Adding to 10020000012 its reverse (21000002001), we get a palindrome (31020002013).

The spelling of 10020000012 in words is "ten billion, twenty million, twelve", and thus it is an aban number and an uban number.