10001002020012 has 36 divisors (see below), whose sum is σ = 25280407073376. Its totient is φ = 3333654626400.

The previous prime is 10001002019947. The next prime is 10001002020043. The reversal of 10001002020012 is 21002020010001.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 10001002019976 and 10001002020003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16869853 + ... + 17452619.

It is an arithmetic number, because the mean of its divisors is an integer number (702233529816).

Almost surely, 2^{10001002020012} is an apocalyptic number.

10001002020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10001002020012 is an abundant number, since it is smaller than the sum of its proper divisors (15279405053364).

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

10001002020012 is a wasteful number, since it uses less digits than its factorization.

10001002020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059478 (or 1059473 counting only the distinct ones).

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

Adding to 10001002020012 its reverse (21002020010001), we get a palindrome (31003022030013).

The spelling of 10001002020012 in words is "ten trillion, one billion, two million, twenty thousand, twelve".