21103232220230 has 64 divisors (see below), whose sum is σ = 40286993079168. Its totient is φ = 7931574405120.

The previous prime is 21103232220227. The next prime is 21103232220251. The reversal of 21103232220230 is 3202223230112.

It is a junction number, because it is equal to n+sod(n) for n = 21103232220196 and 21103232220205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457420244 + ... + 457466376.

It is an arithmetic number, because the mean of its divisors is an integer number (629484266862).

Almost surely, 2^{21103232220230} is an apocalyptic number.

21103232220230 is a deficient number, since it is larger than the sum of its proper divisors (19183760858938).

21103232220230 is a wasteful number, since it uses less digits than its factorization.

21103232220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50561.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21103232220230 its reverse (3202223230112), we get a palindrome (24305455450342).

The spelling of 21103232220230 in words is "twenty-one trillion, one hundred three billion, two hundred thirty-two million, two hundred twenty thousand, two hundred thirty".