1320021322 has 8 divisors (see below), whose sum is σ = 2028325572. Its totient is φ = 643912800.

The previous prime is 1320021301. The next prime is 1320021331. The reversal of 1320021322 is 2231200231.

It can be written as a sum of positive squares in 2 ways, for example, as 859017481 + 461003841 = 29309^2 + 21471^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1320021296 and 1320021305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8048829 + ... + 8048992.

Almost surely, 2^1320021322 is an apocalyptic number.

1320021322 is a deficient number, since it is larger than the sum of its proper divisors (708304250).

1320021322 is a wasteful number, since it uses less digits than its factorization.

1320021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16097864.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1320021322 is about 36332.0976823524. The cubic root of 1320021322 is about 1096.9672168712.

Adding to 1320021322 its reverse (2231200231), we get a palindrome (3551221553).

The spelling of 1320021322 in words is "one billion, three hundred twenty million, twenty-one thousand, three hundred twenty-two".