2201221323 has 24 divisors (see below), whose sum is σ = 3635025888. Its totient is φ = 1257403392.

The previous prime is 2201221273. The next prime is 2201221327. The reversal of 2201221323 is 3231221022.

2201221323 is a `hidden beast` number, since 220 + 122 + 1 + 323 = 666.

It is not a de Polignac number, because 2201221323 - 2⁹ = 2201220811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201221296 and 2201221305.

It is not an unprimeable number, because it can be changed into a prime (2201221327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290661 + ... + 298137.

It is an arithmetic number, because the mean of its divisors is an integer number (151459412).

Almost surely, 2^2201221323 is an apocalyptic number.

2201221323 is a deficient number, since it is larger than the sum of its proper divisors (1433804565).

2201221323 is a wasteful number, since it uses less digits than its factorization.

2201221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12163 (or 12160 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2201221323 is about 46917.1751387485. The cubic root of 2201221323 is about 1300.8320753966.

Adding to 2201221323 its reverse (3231221022), we get a palindrome (5432442345).

It can be divided in two parts, 220122 and 1323, that added together give a triangular number (221445 = T₆₆₅).

The spelling of 2201221323 in words is "two billion, two hundred one million, two hundred twenty-one thousand, three hundred twenty-three".