1322720223 has 16 divisors (see below), whose sum is σ = 1930041216. Its totient is φ = 799113440.

The previous prime is 1322720221. The next prime is 1322720237. The reversal of 1322720223 is 3220272231.

It is a cyclic number.

It is not a de Polignac number, because 1322720223 - 2¹ = 1322720221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322720193 and 1322720202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322720221) 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, 52761 + ... + 73682.

It is an arithmetic number, because the mean of its divisors is an integer number (120627576).

Almost surely, 2^1322720223 is an apocalyptic number.

1322720223 is a deficient number, since it is larger than the sum of its proper divisors (607320993).

1322720223 is a wasteful number, since it uses less digits than its factorization.

1322720223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126774.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 1322720223 is about 36369.2208192587. The cubic root of 1322720223 is about 1097.7143236078.

Adding to 1322720223 its reverse (3220272231), we get a palindrome (4542992454).

The spelling of 1322720223 in words is "one billion, three hundred twenty-two million, seven hundred twenty thousand, two hundred twenty-three".