20100200002101 has 24 divisors (see below), whose sum is σ = 29404919232000. Its totient is φ = 13228809134112.

The previous prime is 20100200002097. The next prime is 20100200002117. The reversal of 20100200002101 is 10120000200102.

It is not a de Polignac number, because 20100200002101 - 2² = 20100200002097 is a prime.

It is a super-2 number, since 2×20100200002101² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100200002501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3723220 + ... + 7352738.

It is an arithmetic number, because the mean of its divisors is an integer number (1225204968000).

Almost surely, 2^{20100200002101} is an apocalyptic number.

It is an amenable number.

20100200002101 is a deficient number, since it is larger than the sum of its proper divisors (9304719229899).

20100200002101 is a wasteful number, since it uses less digits than its factorization.

20100200002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637393 (or 3637390 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20100200002101 its reverse (10120000200102), we get a palindrome (30220200202203).

The spelling of 20100200002101 in words is "twenty trillion, one hundred billion, two hundred million, two thousand, one hundred one".