1322152231 has 4 divisors (see below), whose sum is σ = 1323463600. Its totient is φ = 1320840864.

The previous prime is 1322152211. The next prime is 1322152267. The reversal of 1322152231 is 1322512231.

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 1322152231 - 2⁵ = 1322152199 is a prime.

It is a super-2 number, since 2×1322152231² = 3496173043876554722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322152211) 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 3 ways as a sum of consecutive naturals, for example, 654171 + ... + 656188.

It is an arithmetic number, because the mean of its divisors is an integer number (330865900).

Almost surely, 2^1322152231 is an apocalyptic number.

1322152231 is a deficient number, since it is larger than the sum of its proper divisors (1311369).

1322152231 is a wasteful number, since it uses less digits than its factorization.

1322152231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311368.

The product of its digits is 720, while the sum is 22.

The square root of 1322152231 is about 36361.4112899926. The cubic root of 1322152231 is about 1097.5571771935.

Adding to 1322152231 its reverse (1322512231), we get a palindrome (2644664462).

Subtracting 1322152231 from its reverse (1322512231), we obtain a square (360000 = 600²).

The spelling of 1322152231 in words is "one billion, three hundred twenty-two million, one hundred fifty-two thousand, two hundred thirty-one".