12202023424 has 40 divisors (see below), whose sum is σ = 24421935780. Its totient is φ = 6090571776.

The previous prime is 12202023403. The next prime is 12202023437. The reversal of 12202023424 is 42432020221.

It can be written as a sum of positive squares in 2 ways, for example, as 11303942400 + 898081024 = 106320^2 + 29968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12202023395 and 12202023404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283522 + ... + 323710.

Almost surely, 2^12202023424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202023424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12210967890).

12202023424 is an abundant number, since it is smaller than the sum of its proper divisors (12219912356).

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

12202023424 is an frugal number, since it uses more digits than its factorization.

12202023424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40800 (or 40784 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12202023424 its reverse (42432020221), we get a palindrome (54634043645).

The spelling of 12202023424 in words is "twelve billion, two hundred two million, twenty-three thousand, four hundred twenty-four".