221231131103 has 8 divisors (see below), whose sum is σ = 222293661696. Its totient is φ = 220168733400.

The previous prime is 221231131091. The next prime is 221231131111. The reversal of 221231131103 is 301131132122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221231131103 - 2¹⁴ = 221231114719 is a prime.

It is a super-2 number, since 2×221231131103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221231131123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5502050 + ... + 5542112.

It is an arithmetic number, because the mean of its divisors is an integer number (27786707712).

Almost surely, 2^221231131103 is an apocalyptic number.

221231131103 is a deficient number, since it is larger than the sum of its proper divisors (1062530593).

221231131103 is a wasteful number, since it uses less digits than its factorization.

221231131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66445.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 221231131103 its reverse (301131132122), we get a palindrome (522362263225).

The spelling of 221231131103 in words is "two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred three".