21224102330 has 16 divisors (see below), whose sum is σ = 38304191520. Its totient is φ = 8467239312.

The previous prime is 21224102329. The next prime is 21224102351. The reversal of 21224102330 is 3320142212.

It is a super-2 number, since 2×21224102330² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2796224 + ... + 2803803.

It is an arithmetic number, because the mean of its divisors is an integer number (2394011970).

Almost surely, 2^21224102330 is an apocalyptic number.

21224102330 is a deficient number, since it is larger than the sum of its proper divisors (17080089190).

21224102330 is a wasteful number, since it uses less digits than its factorization.

21224102330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600413.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21224102330 its reverse (3320142212), we get a palindrome (24544244542).

The spelling of 21224102330 in words is "twenty-one billion, two hundred twenty-four million, one hundred two thousand, three hundred thirty".