1321122338 has 8 divisors (see below), whose sum is σ = 1982524332. Its totient is φ = 660280896.

The previous prime is 1321122337. The next prime is 1321122379. The reversal of 1321122338 is 8332211231.

It can be written as a sum of positive squares in 2 ways, for example, as 1320377569 + 744769 = 36337^2 + 863^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1321122331) 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, 134195 + ... + 143702.

Almost surely, 2^1321122338 is an apocalyptic number.

1321122338 is a deficient number, since it is larger than the sum of its proper divisors (661401994).

1321122338 is a wasteful number, since it uses less digits than its factorization.

1321122338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280276.

The product of its digits is 1728, while the sum is 26.

The square root of 1321122338 is about 36347.2466357495. The cubic root of 1321122338 is about 1097.2721217476.

Adding to 1321122338 its reverse (8332211231), we get a palindrome (9653333569).

The spelling of 1321122338 in words is "one billion, three hundred twenty-one million, one hundred twenty-two thousand, three hundred thirty-eight".