21102322230 has 64 divisors (see below), whose sum is σ = 61388582400. Its totient is φ = 5115713760.

The previous prime is 21102322229. The next prime is 21102322243. The reversal of 21102322230 is 3222320112.

21102322230 is a `hidden beast` number, since 2 + 110 + 2 + 322 + 230 = 666.

21102322230 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3549610 + ... + 3555549.

It is an arithmetic number, because the mean of its divisors is an integer number (959196600).

Almost surely, 2^21102322230 is an apocalyptic number.

21102322230 is an abundant number, since it is smaller than the sum of its proper divisors (40286260170).

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

21102322230 is a wasteful number, since it uses less digits than its factorization.

21102322230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105186 (or 7105180 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21102322230 its reverse (3222320112), we get a palindrome (24324642342).

The spelling of 21102322230 in words is "twenty-one billion, one hundred two million, three hundred twenty-two thousand, two hundred thirty".