10021021020012 has 48 divisors (see below), whose sum is σ = 24613301431040. Its totient is φ = 3164498580672.

The previous prime is 10021021019983. The next prime is 10021021020061. The reversal of 10021021020012 is 21002012012001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 10021021020012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28224858 + ... + 28577694.

Almost surely, 2^{10021021020012} is an apocalyptic number.

10021021020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021021020012 is an abundant number, since it is smaller than the sum of its proper divisors (14592280411028).

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

10021021020012 is a wasteful number, since it uses less digits than its factorization.

10021021020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477430 (or 477428 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10021021020012 its reverse (21002012012001), we get a palindrome (31023033032013).

The spelling of 10021021020012 in words is "ten trillion, twenty-one billion, twenty-one million, twenty thousand, twelve".