221031103133 has 8 divisors (see below), whose sum is σ = 228671414400. Its totient is φ = 213392028528.

The previous prime is 221031103091. The next prime is 221031103141. The reversal of 221031103133 is 331301130122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221031103133 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 (221031103193) 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, 62048 + ... + 667766.

It is an arithmetic number, because the mean of its divisors is an integer number (28583926800).

Almost surely, 2^221031103133 is an apocalyptic number.

It is an amenable number.

221031103133 is a deficient number, since it is larger than the sum of its proper divisors (7640311267).

221031103133 is a wasteful number, since it uses less digits than its factorization.

221031103133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618331.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 221031103133 its reverse (331301130122), we get a palindrome (552332233255).

The spelling of 221031103133 in words is "two hundred twenty-one billion, thirty-one million, one hundred three thousand, one hundred thirty-three".