1322165121 has 8 divisors (see below), whose sum is σ = 1764240864. Its totient is φ = 880766400.

The previous prime is 1322165113. The next prime is 1322165147. The reversal of 1322165121 is 1215612231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1322165121 - 2³ = 1322165113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322165091 and 1322165100.

It is not an unprimeable number, because it can be changed into a prime (1322165101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164680 + ... + 172521.

It is an arithmetic number, because the mean of its divisors is an integer number (220530108).

Almost surely, 2^1322165121 is an apocalyptic number.

It is an amenable number.

1322165121 is a deficient number, since it is larger than the sum of its proper divisors (442075743).

1322165121 is a wasteful number, since it uses less digits than its factorization.

1322165121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338511.

The product of its digits is 720, while the sum is 24.

The square root of 1322165121 is about 36361.5885379063. The cubic root of 1322165121 is about 1097.5607439704.

Adding to 1322165121 its reverse (1215612231), we get a palindrome (2537777352).

The spelling of 1322165121 in words is "one billion, three hundred twenty-two million, one hundred sixty-five thousand, one hundred twenty-one".