21110201222103 has 24 divisors (see below), whose sum is σ = 34947307388448. Its totient is φ = 12028799388672.

The previous prime is 21110201222081. The next prime is 21110201222111. The reversal of 21110201222103 is 30122210201112.

It is not a de Polignac number, because 21110201222103 - 2⁸ = 21110201221847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110201222003) 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, 474598950 + ... + 474643427.

It is an arithmetic number, because the mean of its divisors is an integer number (1456137807852).

Almost surely, 2^{21110201222103} is an apocalyptic number.

21110201222103 is a deficient number, since it is larger than the sum of its proper divisors (13837106166345).

21110201222103 is a wasteful number, since it uses less digits than its factorization.

21110201222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949242743 (or 949242740 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21110201222103 its reverse (30122210201112), we get a palindrome (51232411423215).

The spelling of 21110201222103 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, two hundred twenty-two thousand, one hundred three".