21222301330 has 8 divisors (see below), whose sum is σ = 38200142412. Its totient is φ = 8488920528.

The previous prime is 21222301301. The next prime is 21222301403. The reversal of 21222301330 is 3310322212.

It can be written as a sum of positive squares in 2 ways, for example, as 20678152401 + 544148929 = 143799^2 + 23327^2 .

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 = 21222301298 and 21222301307.

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, 1061115057 + ... + 1061115076.

Almost surely, 2^21222301330 is an apocalyptic number.

21222301330 is a deficient number, since it is larger than the sum of its proper divisors (16977841082).

21222301330 is a wasteful number, since it uses less digits than its factorization.

21222301330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122230140.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21222301330 its reverse (3310322212), we get a palindrome (24532623542).

The spelling of 21222301330 in words is "twenty-one billion, two hundred twenty-two million, three hundred one thousand, three hundred thirty".