21022000003 has 8 divisors (see below), whose sum is σ = 21513463488. Its totient is φ = 20530653864.

The previous prime is 21021999989. The next prime is 21022000033. The reversal of 21022000003 is 30000022012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21022000003 is a prime.

It is a super-2 number, since 2×21022000003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022000033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408600 + ... + 457162.

It is an arithmetic number, because the mean of its divisors is an integer number (2689182936).

Almost surely, 2^21022000003 is an apocalyptic number.

21022000003 is a deficient number, since it is larger than the sum of its proper divisors (491463485).

21022000003 is a wasteful number, since it uses less digits than its factorization.

21022000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58673.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 21022000003 its reverse (30000022012), we get a palindrome (51022022015).

The spelling of 21022000003 in words is "twenty-one billion, twenty-two million, three", and thus it is an aban number and an uban number.