21203103022 has 8 divisors (see below), whose sum is σ = 31805330400. Its totient is φ = 10601326224.

The previous prime is 21203102983. The next prime is 21203103041. The reversal of 21203103022 is 22030130212.

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 = 21203102987 and 21203103005.

It is a congruent number.

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, 54754 + ... + 213082.

It is an arithmetic number, because the mean of its divisors is an integer number (3975666300).

Almost surely, 2^21203103022 is an apocalyptic number.

21203103022 is a deficient number, since it is larger than the sum of its proper divisors (10602227378).

21203103022 is a wasteful number, since it uses less digits than its factorization.

21203103022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225290.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21203103022 its reverse (22030130212), we get a palindrome (43233233234).

The spelling of 21203103022 in words is "twenty-one billion, two hundred three million, one hundred three thousand, twenty-two".