21121330322 has 8 divisors (see below), whose sum is σ = 31686627072. Its totient is φ = 10559121300.

The previous prime is 21121330319. The next prime is 21121330327. The reversal of 21121330322 is 22303312112.

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

It is a super-2 number, since 2×21121330322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121330294 and 21121330303.

It is not an unprimeable number, because it can be changed into a prime (21121330327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754754 + ... + 782237.

It is an arithmetic number, because the mean of its divisors is an integer number (3960828384).

Almost surely, 2^21121330322 is an apocalyptic number.

21121330322 is a deficient number, since it is larger than the sum of its proper divisors (10565296750).

21121330322 is a wasteful number, since it uses less digits than its factorization.

21121330322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543864.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21121330322 its reverse (22303312112), we get a palindrome (43424642434).

The spelling of 21121330322 in words is "twenty-one billion, one hundred twenty-one million, three hundred thirty thousand, three hundred twenty-two".