221112431230203 has 12 divisors (see below), whose sum is σ = 336194339882440. Its totient is φ = 139649956566336.

The previous prime is 221112431230189. The next prime is 221112431230253. The reversal of 221112431230203 is 302032134211122.

221112431230203 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 1 + 2 + 431 + 23 + 0 + 203 = 666.

It is not a de Polignac number, because 221112431230203 - 2⁶ = 221112431230139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221112431230253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 646527576526 + ... + 646527576867.

Almost surely, 2^{221112431230203} is an apocalyptic number.

221112431230203 is a deficient number, since it is larger than the sum of its proper divisors (115081908652237).

221112431230203 is a wasteful number, since it uses less digits than its factorization.

221112431230203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293055153418 (or 1293055153415 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 221112431230203 its reverse (302032134211122), we get a palindrome (523144565441325).

The spelling of 221112431230203 in words is "two hundred twenty-one trillion, one hundred twelve billion, four hundred thirty-one million, two hundred thirty thousand, two hundred three".