21322021312330 has 8 divisors (see below), whose sum is σ = 38379638362212. Its totient is φ = 8528808524928.

The previous prime is 21322021312307. The next prime is 21322021312367. The reversal of 21322021312330 is 3321312022312.

It can be written as a sum of positive squares in 2 ways, for example, as 19711921715721 + 1610099596609 = 4439811^2 + 1268897^2 .

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 = 21322021312295 and 21322021312304.

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, 1066101065607 + ... + 1066101065626.

Almost surely, 2^{21322021312330} is an apocalyptic number.

21322021312330 is a deficient number, since it is larger than the sum of its proper divisors (17057617049882).

21322021312330 is a wasteful number, since it uses less digits than its factorization.

21322021312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132202131240.

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

Adding to 21322021312330 its reverse (3321312022312), we get a palindrome (24643333334642).

The spelling of 21322021312330 in words is "twenty-one trillion, three hundred twenty-two billion, twenty-one million, three hundred twelve thousand, three hundred thirty".