20123220122224 has 20 divisors (see below), whose sum is σ = 38988841882536. Its totient is φ = 10061583507392.

The previous prime is 20123220122191. The next prime is 20123220122227. The reversal of 20123220122224 is 42222102232102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123220122227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538567 + ... + 8421529.

Almost surely, 2^{20123220122224} is an apocalyptic number.

It is an amenable number.

20123220122224 is a deficient number, since it is larger than the sum of its proper divisors (18865621760312).

20123220122224 is a wasteful number, since it uses less digits than its factorization.

20123220122224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319224 (or 3319218 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20123220122224 its reverse (42222102232102), we get a palindrome (62345322354326).

The spelling of 20123220122224 in words is "twenty trillion, one hundred twenty-three billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twenty-four".