20010012002000 has 160 divisors (see below), whose sum is σ = 48536733593088. Its totient is φ = 7978804800000.

The previous prime is 20010012001943. The next prime is 20010012002009. The reversal of 20010012002000 is 20021001002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010012002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1112833010 + ... + 1112850990.

Almost surely, 2^{20010012002000} is an apocalyptic number.

20010012002000 is a gapful number since it is divisible by the number (20) 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 20010012002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24268366796544).

20010012002000 is an abundant number, since it is smaller than the sum of its proper divisors (28526721591088).

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

20010012002000 is a wasteful number, since it uses less digits than its factorization.

20010012002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19726 (or 19710 counting only the distinct ones).

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

Adding to 20010012002000 its reverse (20021001002), we get a palindrome (20030033003002).

The spelling of 20010012002000 in words is "twenty trillion, ten billion, twelve million, two thousand".