221122012203 has 6 divisors (see below), whose sum is σ = 319398462084. Its totient is φ = 147414674796.

The previous prime is 221122012183. The next prime is 221122012261. The reversal of 221122012203 is 302210221122.

221122012203 is a `hidden beast` number, since 221 + 1 + 220 + 1 + 220 + 3 = 666.

It is not a de Polignac number, because 221122012203 - 2⁵ = 221122012171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221122012283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12284556225 + ... + 12284556242.

It is an arithmetic number, because the mean of its divisors is an integer number (53233077014).

Almost surely, 2^221122012203 is an apocalyptic number.

221122012203 is a deficient number, since it is larger than the sum of its proper divisors (98276449881).

221122012203 is a wasteful number, since it uses less digits than its factorization.

221122012203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24569112473 (or 24569112470 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221122012203 its reverse (302210221122), we get a palindrome (523332233325).

The spelling of 221122012203 in words is "two hundred twenty-one billion, one hundred twenty-two million, twelve thousand, two hundred three".