20012001202000 has 40 divisors (see below), whose sum is σ = 48389018911272. Its totient is φ = 8004800480000.

The previous prime is 20012001201943. The next prime is 20012001202051. The reversal of 20012001202000 is 20210021002.

It can be written as a sum of positive squares in 4 ways, for example, as 3796979605056 + 16215021596944 = 1948584^2 + 4026788^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5002998301 + ... + 5003002300.

Almost surely, 2^{20012001202000} is an apocalyptic number.

20012001202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012001202000 is an abundant number, since it is smaller than the sum of its proper divisors (28377017709272).

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

20012001202000 is a wasteful number, since it uses less digits than its factorization.

20012001202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006000624 (or 10006000608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20012001202000 its reverse (20210021002), we get a palindrome (20032211223002).

The spelling of 20012001202000 in words is "twenty trillion, twelve billion, one million, two hundred two thousand".