21232211032230 has 128 divisors (see below), whose sum is σ = 58540061422080. Its totient is φ = 4874256092160.

The previous prime is 21232211032181. The next prime is 21232211032303. The reversal of 21232211032230 is 3223011223212.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21232211032230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14296564 + ... + 15711656.

It is an arithmetic number, because the mean of its divisors is an integer number (457344229860).

Almost surely, 2^{21232211032230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21232211032230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29270030711040).

21232211032230 is an abundant number, since it is smaller than the sum of its proper divisors (37307850389850).

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

21232211032230 is a wasteful number, since it uses less digits than its factorization.

21232211032230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417526.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21232211032230 its reverse (3223011223212), we get a palindrome (24455222255442).

The spelling of 21232211032230 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred eleven million, thirty-two thousand, two hundred thirty".