12269124520 has 32 divisors (see below), whose sum is σ = 28351629000. Its totient is φ = 4775010048.

The previous prime is 12269124473. The next prime is 12269124523. The reversal of 12269124520 is 2542196221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12044184516 + 224940004 = 109746^2 + 14998^2 .

It is not an unprimeable number, because it can be changed into a prime (12269124523) 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, 4143495 + ... + 4146454.

Almost surely, 2^12269124520 is an apocalyptic number.

12269124520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12269124520 is an abundant number, since it is smaller than the sum of its proper divisors (16082504480).

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

12269124520 is a wasteful number, since it uses less digits than its factorization.

12269124520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289997 (or 8289993 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 12269124520 in words is "twelve billion, two hundred sixty-nine million, one hundred twenty-four thousand, five hundred twenty".