20010012020000 has 60 divisors (see below), whose sum is σ = 49227631120206. Its totient is φ = 8004004800000.

The previous prime is 20010012019999. The next prime is 20010012020021. The reversal of 20010012020000 is 2021001002.

It can be written as a sum of positive squares in 5 ways, for example, as 830482270864 + 19179529749136 = 911308^2 + 4379444^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20010012020000.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 500230301 + ... + 500270300.

Almost surely, 2^{20010012020000} is an apocalyptic number.

20010012020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010012020000 is an abundant number, since it is smaller than the sum of its proper divisors (29217619100206).

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

20010012020000 is an equidigital number, since it uses as much as digits as its factorization.

20010012020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000500631 (or 1000500608 counting only the distinct ones).

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

Adding to 20010012020000 its reverse (2021001002), we get a palindrome (20012033021002).

The spelling of 20010012020000 in words is "twenty trillion, ten billion, twelve million, twenty thousand".