20001102220101 has 16 divisors (see below), whose sum is σ = 27837895050368. Its totient is φ = 12761004513600.

The previous prime is 20001102220067. The next prime is 20001102220133. The reversal of 20001102220101 is 10102220110002.

It is not a de Polignac number, because 20001102220101 - 2²⁶ = 20001035111237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001102220201) 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 15 ways as a sum of consecutive naturals, for example, 1476961345 + ... + 1476974886.

It is an arithmetic number, because the mean of its divisors is an integer number (1739868440648).

Almost surely, 2^{20001102220101} is an apocalyptic number.

It is an amenable number.

20001102220101 is a deficient number, since it is larger than the sum of its proper divisors (7836792830267).

20001102220101 is a wasteful number, since it uses less digits than its factorization.

20001102220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953936332.

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

Adding to 20001102220101 its reverse (10102220110002), we get a palindrome (30103322330103).

The spelling of 20001102220101 in words is "twenty trillion, one billion, one hundred two million, two hundred twenty thousand, one hundred one".