21003103222 has 16 divisors (see below), whose sum is σ = 31773792960. Its totient is φ = 10412147592.

The previous prime is 21003103207. The next prime is 21003103273. The reversal of 21003103222 is 22230130012.

It is a super-2 number, since 2×21003103222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003103196 and 21003103205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59713 + ... + 213475.

It is an arithmetic number, because the mean of its divisors is an integer number (1985862060).

Almost surely, 2^21003103222 is an apocalyptic number.

21003103222 is a deficient number, since it is larger than the sum of its proper divisors (10770689738).

21003103222 is a wasteful number, since it uses less digits than its factorization.

21003103222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154347.

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

Adding to 21003103222 its reverse (22230130012), we get a palindrome (43233233234).

The spelling of 21003103222 in words is "twenty-one billion, three million, one hundred three thousand, two hundred twenty-two".