21022002322 has 8 divisors (see below), whose sum is σ = 31537393200. Its totient is φ = 10509537924.

The previous prime is 21022002319. The next prime is 21022002377. The reversal of 21022002322 is 22320022012.

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 = 21022002296 and 21022002305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713572 + ... + 742447.

It is an arithmetic number, because the mean of its divisors is an integer number (3942174150).

Almost surely, 2^21022002322 is an apocalyptic number.

21022002322 is a deficient number, since it is larger than the sum of its proper divisors (10515390878).

21022002322 is a wasteful number, since it uses less digits than its factorization.

21022002322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463240.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21022002322 its reverse (22320022012), we get a palindrome (43342024334).

The spelling of 21022002322 in words is "twenty-one billion, twenty-two million, two thousand, three hundred twenty-two".