221120203213203 has 64 divisors (see below), whose sum is σ = 344984624640000. Its totient is φ = 123353337913344.

The previous prime is 221120203213123. The next prime is 221120203213219. The reversal of 221120203213203 is 302312302021122.

It is not a de Polignac number, because 221120203213203 - 2⁹ = 221120203212691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221120203213603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1501805793 + ... + 1501953021.

It is an arithmetic number, because the mean of its divisors is an integer number (5390384760000).

Almost surely, 2^{221120203213203} is an apocalyptic number.

221120203213203 is a deficient number, since it is larger than the sum of its proper divisors (123864421426797).

221120203213203 is a wasteful number, since it uses less digits than its factorization.

221120203213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151124.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 221120203213203 its reverse (302312302021122), we get a palindrome (523432505234325).

The spelling of 221120203213203 in words is "two hundred twenty-one trillion, one hundred twenty billion, two hundred three million, two hundred thirteen thousand, two hundred three".