20012002011000 has 96 divisors (see below), whose sum is σ = 67640566827600. Its totient is φ = 5336533867200.

The previous prime is 20012002010989. The next prime is 20012002011007. The reversal of 20012002011000 is 11020021002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012002011007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1111768890 + ... + 1111786889.

Almost surely, 2^{20012002011000} is an apocalyptic number.

20012002011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012002011000 is an abundant number, since it is smaller than the sum of its proper divisors (47628564816600).

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

20012002011000 is a wasteful number, since it uses less digits than its factorization.

20012002011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223555806 (or 2223555789 counting only the distinct ones).

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

Adding to 20012002011000 its reverse (11020021002), we get a palindrome (20023022032002).

The spelling of 20012002011000 in words is "twenty trillion, twelve billion, two million, eleven thousand".