20010001202002 has 64 divisors (see below), whose sum is σ = 35499862130688. Its totient is φ = 8277886656000.

The previous prime is 20010001201999. The next prime is 20010001202027. The reversal of 20010001202002 is 20020210001002.

It is a self number, because there is not a number n which added to its sum of digits gives 20010001202002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1023362658 + ... + 1023382210.

It is an arithmetic number, because the mean of its divisors is an integer number (554685345792).

Almost surely, 2^{20010001202002} is an apocalyptic number.

20010001202002 is a deficient number, since it is larger than the sum of its proper divisors (15489860928686).

20010001202002 is a wasteful number, since it uses less digits than its factorization.

20010001202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25495.

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

Adding to 20010001202002 its reverse (20020210001002), we get a palindrome (40030211203004).

The spelling of 20010001202002 in words is "twenty trillion, ten billion, one million, two hundred two thousand, two".