2001200021202 has 128 divisors (see below), whose sum is σ = 4501589852160. Its totient is φ = 589814184960.

The previous prime is 2001200021147. The next prime is 2001200021209. The reversal of 2001200021202 is 2021200021002.

It is not an unprimeable number, because it can be changed into a prime (2001200021209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35370528 + ... + 35427060.

It is an arithmetic number, because the mean of its divisors is an integer number (35168670720).

Almost surely, 2^{2001200021202} is an apocalyptic number.

2001200021202 is an abundant number, since it is smaller than the sum of its proper divisors (2500389830958).

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

2001200021202 is a wasteful number, since it uses less digits than its factorization.

2001200021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56848.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2001200021202 its reverse (2021200021002), we get a palindrome (4022400042204).

The spelling of 2001200021202 in words is "two trillion, one billion, two hundred million, twenty-one thousand, two hundred two".