21203022322 has 8 divisors (see below), whose sum is σ = 32830486272. Its totient is φ = 10259526900.

The previous prime is 21203022299. The next prime is 21203022341. The reversal of 21203022322 is 22322030212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21203022322.

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, 170992054 + ... + 170992177.

It is an arithmetic number, because the mean of its divisors is an integer number (4103810784).

Almost surely, 2^21203022322 is an apocalyptic number.

21203022322 is a deficient number, since it is larger than the sum of its proper divisors (11627463950).

21203022322 is a wasteful number, since it uses less digits than its factorization.

21203022322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341984264.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21203022322 its reverse (22322030212), we get a palindrome (43525052534).

The spelling of 21203022322 in words is "twenty-one billion, two hundred three million, twenty-two thousand, three hundred twenty-two".