221331032212103 has 16 divisors (see below), whose sum is σ = 245262184141056. Its totient is φ = 198046224642240.

The previous prime is 221331032212061. The next prime is 221331032212109. The reversal of 221331032212103 is 301212230133122.

It is a cyclic number.

It is not a de Polignac number, because 221331032212103 - 2²⁴ = 221331015434887 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 (221331032212109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282596801 + ... + 283378922.

It is an arithmetic number, because the mean of its divisors is an integer number (15328886508816).

Almost surely, 2^{221331032212103} is an apocalyptic number.

221331032212103 is a deficient number, since it is larger than the sum of its proper divisors (23931151928953).

221331032212103 is a wasteful number, since it uses less digits than its factorization.

221331032212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565976294.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 221331032212103 its reverse (301212230133122), we get a palindrome (522543262345225).

The spelling of 221331032212103 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, thirty-two million, two hundred twelve thousand, one hundred three".