21022102230 has 64 divisors (see below), whose sum is σ = 52106858496. Its totient is φ = 5422320000.

The previous prime is 21022102229. The next prime is 21022102289. The reversal of 21022102230 is 3220122012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2368000 + ... + 2376860.

It is an arithmetic number, because the mean of its divisors is an integer number (814169664).

Almost surely, 2^21022102230 is an apocalyptic number.

21022102230 is an abundant number, since it is smaller than the sum of its proper divisors (31084756266).

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

21022102230 is a wasteful number, since it uses less digits than its factorization.

21022102230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11453.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21022102230 its reverse (3220122012), we get a palindrome (24242224242).

The spelling of 21022102230 in words is "twenty-one billion, twenty-two million, one hundred two thousand, two hundred thirty".