20031222230 has 16 divisors (see below), whose sum is σ = 38177153280. Its totient is φ = 7541165952.

The previous prime is 20031222223. The next prime is 20031222259. The reversal of 20031222230 is 3222213002.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20031222199 and 20031222208.

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, 58915190 + ... + 58915529.

It is an arithmetic number, because the mean of its divisors is an integer number (2386072080).

Almost surely, 2^20031222230 is an apocalyptic number.

20031222230 is a deficient number, since it is larger than the sum of its proper divisors (18145931050).

20031222230 is a wasteful number, since it uses less digits than its factorization.

20031222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117830743.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20031222230 its reverse (3222213002), we get a palindrome (23253435232).

The spelling of 20031222230 in words is "twenty billion, thirty-one million, two hundred twenty-two thousand, two hundred thirty".