20001202012101 has 16 divisors (see below), whose sum is σ = 27830929973760. Its totient is φ = 12752936473200.

The previous prime is 20001202012087. The next prime is 20001202012139. The reversal of 20001202012101 is 10121020210002.

It is not a de Polignac number, because 20001202012101 - 2⁵ = 20001202012069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001202012171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15903675 + ... + 17115176.

It is an arithmetic number, because the mean of its divisors is an integer number (1739433123360).

Almost surely, 2^{20001202012101} is an apocalyptic number.

It is an amenable number.

20001202012101 is a deficient number, since it is larger than the sum of its proper divisors (7829727961659).

20001202012101 is a wasteful number, since it uses less digits than its factorization.

20001202012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33027656.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001202012101 its reverse (10121020210002), we get a palindrome (30122222222103).

The spelling of 20001202012101 in words is "twenty trillion, one billion, two hundred two million, twelve thousand, one hundred one".