21022310330 has 96 divisors (see below), whose sum is σ = 46251668736. Its totient is φ = 6715915776.

The previous prime is 21022310329. The next prime is 21022310399. The reversal of 21022310330 is 3301322012.

It is a super-2 number, since 2×21022310330² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 21022310299 and 21022310308.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13623539 + ... + 13625081.

It is an arithmetic number, because the mean of its divisors is an integer number (481788216).

Almost surely, 2^21022310330 is an apocalyptic number.

21022310330 is an abundant number, since it is smaller than the sum of its proper divisors (25229358406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022310330 is a wasteful number, since it uses less digits than its factorization.

21022310330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21022310330 its reverse (3301322012), we get a palindrome (24323632342).

The spelling of 21022310330 in words is "twenty-one billion, twenty-two million, three hundred ten thousand, three hundred thirty".