1321404322 has 64 divisors (see below), whose sum is σ = 2449004544. Its totient is φ = 521913600.

The previous prime is 1321404299. The next prime is 1321404431. The reversal of 1321404322 is 2234041231.

It is a super-2 number, since 2×1321404322² = 3492218764400559368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321404293 and 1321404302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2982633 + ... + 2983075.

It is an arithmetic number, because the mean of its divisors is an integer number (38265696).

Almost surely, 2^1321404322 is an apocalyptic number.

1321404322 is a deficient number, since it is larger than the sum of its proper divisors (1127600222).

1321404322 is a wasteful number, since it uses less digits than its factorization.

1321404322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1321404322 is about 36351.1254571299. The cubic root of 1321404322 is about 1097.3501844578.

Adding to 1321404322 its reverse (2234041231), we get a palindrome (3555445553).

The spelling of 1321404322 in words is "one billion, three hundred twenty-one million, four hundred four thousand, three hundred twenty-two".