21103303222 has 8 divisors (see below), whose sum is σ = 31756089816. Its totient is φ = 10517939952.

The previous prime is 21103303201. The next prime is 21103303223. The reversal of 21103303222 is 22230330112.

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 21103303222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103303223) 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, 16855048 + ... + 16856299.

It is an arithmetic number, because the mean of its divisors is an integer number (3969511227).

Almost surely, 2^21103303222 is an apocalyptic number.

21103303222 is a deficient number, since it is larger than the sum of its proper divisors (10652786594).

21103303222 is a wasteful number, since it uses less digits than its factorization.

21103303222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33711662.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21103303222 its reverse (22230330112), we get a palindrome (43333633334).

The spelling of 21103303222 in words is "twenty-one billion, one hundred three million, three hundred three thousand, two hundred twenty-two".