21314331322 has 4 divisors (see below), whose sum is σ = 31971496986. Its totient is φ = 10657165660.

The previous prime is 21314331301. The next prime is 21314331329. The reversal of 21314331322 is 22313341312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21010212601 + 304118721 = 144949^2 + 17439^2 .

It is not an unprimeable number, because it can be changed into a prime (21314331329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328582829 + ... + 5328582832.

Almost surely, 2^21314331322 is an apocalyptic number.

21314331322 is a deficient number, since it is larger than the sum of its proper divisors (10657165664).

21314331322 is a wasteful number, since it uses less digits than its factorization.

21314331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657165663.

The product of its digits is 2592, while the sum is 25.

Adding to 21314331322 its reverse (22313341312), we get a palindrome (43627672634).

The spelling of 21314331322 in words is "twenty-one billion, three hundred fourteen million, three hundred thirty-one thousand, three hundred twenty-two".