221001100032103 has 16 divisors (see below), whose sum is σ = 224075527372800. Its totient is φ = 217939851581760.

The previous prime is 221001100031939. The next prime is 221001100032121. The reversal of 221001100032103 is 301230001100122.

It is a cyclic number.

It is not a de Polignac number, because 221001100032103 - 2³³ = 220992510097511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001103032103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160192158 + ... + 1160382628.

It is an arithmetic number, because the mean of its divisors is an integer number (14004720460800).

Almost surely, 2^{221001100032103} is an apocalyptic number.

221001100032103 is a deficient number, since it is larger than the sum of its proper divisors (3074427340697).

221001100032103 is a wasteful number, since it uses less digits than its factorization.

221001100032103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224982.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221001100032103 its reverse (301230001100122), we get a palindrome (522231101132225).

The spelling of 221001100032103 in words is "two hundred twenty-one trillion, one billion, one hundred million, thirty-two thousand, one hundred three".