10121223424 has 54 divisors (see below), whose sum is σ = 21876618246. Its totient is φ = 4671313920.

The previous prime is 10121223421. The next prime is 10121223461. The reversal of 10121223424 is 42432212101.

It can be written as a sum of positive squares in 3 ways, for example, as 274233600 + 9846989824 = 16560^2 + 99232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10121223395 and 10121223404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121223421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73707 + ... + 160234.

Almost surely, 2^10121223424 is an apocalyptic number.

It is an amenable number.

10121223424 is an abundant number, since it is smaller than the sum of its proper divisors (11755394822).

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

10121223424 is an equidigital number, since it uses as much as digits as its factorization.

10121223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233983 (or 233956 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10121223424 its reverse (42432212101), we get a palindrome (52553435525).

The spelling of 10121223424 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred twenty-four".