221033221003 has 16 divisors (see below), whose sum is σ = 261336473280. Its totient is φ = 182912558976.

The previous prime is 221033220997. The next prime is 221033221051. The reversal of 221033221003 is 300122330122.

It is not a de Polignac number, because 221033221003 - 2²⁵ = 220999666571 is a prime.

It is a super-2 number, since 2×221033221003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221033221103) 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, 5104801 + ... + 5147917.

It is an arithmetic number, because the mean of its divisors is an integer number (16333529580).

Almost surely, 2^221033221003 is an apocalyptic number.

221033221003 is a deficient number, since it is larger than the sum of its proper divisors (40303252277).

221033221003 is a wasteful number, since it uses less digits than its factorization.

221033221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68406.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 221033221003 its reverse (300122330122), we get a palindrome (521155551125).

The spelling of 221033221003 in words is "two hundred twenty-one billion, thirty-three million, two hundred twenty-one thousand, three".