20121332230 has 16 divisors (see below), whose sum is σ = 37197274320. Its totient is φ = 7831004832.

The previous prime is 20121332227. The next prime is 20121332299. The reversal of 20121332230 is 3223312102.

It is a junction number, because it is equal to n+sod(n) for n = 20121332198 and 20121332207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27190620 + ... + 27191359.

It is an arithmetic number, because the mean of its divisors is an integer number (2324829645).

Almost surely, 2^20121332230 is an apocalyptic number.

20121332230 is a deficient number, since it is larger than the sum of its proper divisors (17075942090).

20121332230 is a wasteful number, since it uses less digits than its factorization.

20121332230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54382023.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20121332230 its reverse (3223312102), we get a palindrome (23344644332).

The spelling of 20121332230 in words is "twenty billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty".