20124212110223 has 8 divisors (see below), whose sum is σ = 21800466466800. Its totient is φ = 18576195792024.

The previous prime is 20124212110199. The next prime is 20124212110283. The reversal of 20124212110223 is 32201121242102.

It is not a de Polignac number, because 20124212110223 - 2¹⁶ = 20124212044687 is a prime.

It is a super-2 number, since 2×20124212110223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124212110283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4579927733 + ... + 4579932126.

It is an arithmetic number, because the mean of its divisors is an integer number (2725058308350).

Almost surely, 2^{20124212110223} is an apocalyptic number.

20124212110223 is a deficient number, since it is larger than the sum of its proper divisors (1676254356577).

20124212110223 is an frugal number, since it uses more digits than its factorization.

20124212110223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159859898 (or 9159859872 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 20124212110223 its reverse (32201121242102), we get a palindrome (52325333352325).

The spelling of 20124212110223 in words is "twenty trillion, one hundred twenty-four billion, two hundred twelve million, one hundred ten thousand, two hundred twenty-three".