2221400323 has 4 divisors (see below), whose sum is σ = 2236309200. Its totient is φ = 2206491448.

The previous prime is 2221400309. The next prime is 2221400347. The reversal of 2221400323 is 3230041222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2221400323 - 2²¹ = 2219303171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221400323.

It is not an unprimeable number, because it can be changed into a prime (2221400123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7454215 + ... + 7454512.

It is an arithmetic number, because the mean of its divisors is an integer number (559077300).

Almost surely, 2^2221400323 is an apocalyptic number.

2221400323 is a deficient number, since it is larger than the sum of its proper divisors (14908877).

2221400323 is a wasteful number, since it uses less digits than its factorization.

2221400323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14908876.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2221400323 is about 47131.7337151945. The cubic root of 2221400323 is about 1304.7949792178.

Adding to 2221400323 its reverse (3230041222), we get a palindrome (5451441545).

The spelling of 2221400323 in words is "two billion, two hundred twenty-one million, four hundred thousand, three hundred twenty-three".