221331130223203 has 64 divisors (see below), whose sum is σ = 297497215217664. Its totient is φ = 159024995712000.

The previous prime is 221331130223113. The next prime is 221331130223213. The reversal of 221331130223203 is 302322031133122.

It is a happy number.

It is not a de Polignac number, because 221331130223203 - 2²¹ = 221331128126051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221331130223213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4723117993 + ... + 4723164853.

It is an arithmetic number, because the mean of its divisors is an integer number (4648393987776).

Almost surely, 2^{221331130223203} is an apocalyptic number.

221331130223203 is a deficient number, since it is larger than the sum of its proper divisors (76166084994461).

221331130223203 is a wasteful number, since it uses less digits than its factorization.

221331130223203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51956.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 221331130223203 its reverse (302322031133122), we get a palindrome (523653161356325).

The spelling of 221331130223203 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, one hundred thirty million, two hundred twenty-three thousand, two hundred three".