21233004322 has 4 divisors (see below), whose sum is σ = 31849506486. Its totient is φ = 10616502160.

The previous prime is 21233004283. The next prime is 21233004349. The reversal of 21233004322 is 22340033212.

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., 21137961321 + 95043001 = 145389^2 + 9749^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21233004293 and 21233004302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5308251079 + ... + 5308251082.

Almost surely, 2^21233004322 is an apocalyptic number.

21233004322 is a deficient number, since it is larger than the sum of its proper divisors (10616502164).

21233004322 is a wasteful number, since it uses less digits than its factorization.

21233004322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10616502163.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21233004322 its reverse (22340033212), we get a palindrome (43573037534).

The spelling of 21233004322 in words is "twenty-one billion, two hundred thirty-three million, four thousand, three hundred twenty-two".