21213102322 has 8 divisors (see below), whose sum is σ = 31825305216. Its totient is φ = 10604667252.

The previous prime is 21213102307. The next prime is 21213102359. The reversal of 21213102322 is 22320131212.

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 21213102322.

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, 927838 + ... + 950425.

It is an arithmetic number, because the mean of its divisors is an integer number (3978163152).

Almost surely, 2^21213102322 is an apocalyptic number.

21213102322 is a deficient number, since it is larger than the sum of its proper divisors (10612202894).

21213102322 is a wasteful number, since it uses less digits than its factorization.

21213102322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883912.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21213102322 its reverse (22320131212), we get a palindrome (43533233534).

The spelling of 21213102322 in words is "twenty-one billion, two hundred thirteen million, one hundred two thousand, three hundred twenty-two".