21200110032101 has 64 divisors (see below), whose sum is σ = 29489797854720. Its totient is φ = 14701118423040.

The previous prime is 21200110032077. The next prime is 21200110032121. The reversal of 21200110032101 is 10123001100212.

It is a de Polignac number, because none of the positive numbers 2^k-21200110032101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200110032121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18993941 + ... + 20079093.

It is an arithmetic number, because the mean of its divisors is an integer number (460778091480).

Almost surely, 2^{21200110032101} is an apocalyptic number.

It is an amenable number.

21200110032101 is a deficient number, since it is larger than the sum of its proper divisors (8289687822619).

21200110032101 is a wasteful number, since it uses less digits than its factorization.

21200110032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085886.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21200110032101 its reverse (10123001100212), we get a palindrome (31323111132313).

The spelling of 21200110032101 in words is "twenty-one trillion, two hundred billion, one hundred ten million, thirty-two thousand, one hundred one".