12209072652 has 240 divisors, whose sum is σ = 37852091200. Its totient is φ = 3429216000.

The previous prime is 12209072639. The next prime is 12209072653. The reversal of 12209072652 is 25627090221.

It is a happy number.

It is a super-2 number, since 2×12209072652² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12209072653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6778152 + ... + 6779952.

Almost surely, 2^12209072652 is an apocalyptic number.

12209072652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12209072652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18926045600).

12209072652 is an abundant number, since it is smaller than the sum of its proper divisors (25643018548).

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

12209072652 is a wasteful number, since it uses less digits than its factorization.

12209072652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 12209072652 in words is "twelve billion, two hundred nine million, seventy-two thousand, six hundred fifty-two".