21003033422 has 16 divisors (see below), whose sum is σ = 36009552480. Its totient is φ = 9000211968.

The previous prime is 21003033421. The next prime is 21003033427. The reversal of 21003033422 is 22433030012.

It is a super-2 number, since 2×21003033422² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003033394 and 21003033403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003033421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35318 + ... + 207974.

It is an arithmetic number, because the mean of its divisors is an integer number (2250597030).

Almost surely, 2^21003033422 is an apocalyptic number.

21003033422 is a deficient number, since it is larger than the sum of its proper divisors (15006519058).

21003033422 is a wasteful number, since it uses less digits than its factorization.

21003033422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181355.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21003033422 its reverse (22433030012), we get a palindrome (43436063434).

The spelling of 21003033422 in words is "twenty-one billion, three million, thirty-three thousand, four hundred twenty-two".