20002110100101 has 24 divisors (see below), whose sum is σ = 29805861962240. Its totient is φ = 12916160734176.

The previous prime is 20002110100097. The next prime is 20002110100117. The reversal of 20002110100101 is 10100101120002.

It is a happy number.

It is not a de Polignac number, because 20002110100101 - 2² = 20002110100097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002110100901) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 134603761 + ... + 134752278.

Almost surely, 2^{20002110100101} is an apocalyptic number.

It is an amenable number.

20002110100101 is a deficient number, since it is larger than the sum of its proper divisors (9803751862139).

20002110100101 is a wasteful number, since it uses less digits than its factorization.

20002110100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269356305 (or 269356302 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20002110100101 its reverse (10100101120002), we get a palindrome (30102211220103).

The spelling of 20002110100101 in words is "twenty trillion, two billion, one hundred ten million, one hundred thousand, one hundred one".