21110200222101 has 24 divisors (see below), whose sum is σ = 30034110968064. Its totient is φ = 13186218324480.

The previous prime is 21110200222099. The next prime is 21110200222117. The reversal of 21110200222101 is 10122200201112.

It is not a de Polignac number, because 21110200222101 - 2¹ = 21110200222099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110200222121) 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, 54399840 + ... + 54786521.

It is an arithmetic number, because the mean of its divisors is an integer number (1251421290336).

Almost surely, 2^{21110200222101} is an apocalyptic number.

It is an amenable number.

21110200222101 is a deficient number, since it is larger than the sum of its proper divisors (8923910745963).

21110200222101 is a wasteful number, since it uses less digits than its factorization.

21110200222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109186621 (or 109186604 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110200222101 its reverse (10122200201112), we get a palindrome (31232400423213).

The spelling of 21110200222101 in words is "twenty-one trillion, one hundred ten billion, two hundred million, two hundred twenty-two thousand, one hundred one".