21220330203322 has 4 divisors (see below), whose sum is σ = 31830495304986. Its totient is φ = 10610165101660.

The previous prime is 21220330203301. The next prime is 21220330203361. The reversal of 21220330203322 is 22330203302212.

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., 10800352659321 + 10419977544001 = 3286389^2 + 3227999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5305082550829 + ... + 5305082550832.

Almost surely, 2^{21220330203322} is an apocalyptic number.

21220330203322 is a deficient number, since it is larger than the sum of its proper divisors (10610165101664).

21220330203322 is a wasteful number, since it uses less digits than its factorization.

21220330203322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610165101663.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21220330203322 its reverse (22330203302212), we get a palindrome (43550533505534).

The spelling of 21220330203322 in words is "twenty-one trillion, two hundred twenty billion, three hundred thirty million, two hundred three thousand, three hundred twenty-two".