12203234412 has 24 divisors (see below), whose sum is σ = 28750665216. Its totient is φ = 4028251728.

The previous prime is 12203234369. The next prime is 12203234437. The reversal of 12203234412 is 21443230221.

It is a happy number.

It is a super-2 number, since 2×12203234412² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4935348 + ... + 4937819.

It is an arithmetic number, because the mean of its divisors is an integer number (1197944384).

Almost surely, 2^12203234412 is an apocalyptic number.

12203234412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12203234412 is an abundant number, since it is smaller than the sum of its proper divisors (16547430804).

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

12203234412 is a wasteful number, since it uses less digits than its factorization.

12203234412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873277 (or 9873275 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12203234412 its reverse (21443230221), we get a palindrome (33646464633).

The spelling of 12203234412 in words is "twelve billion, two hundred three million, two hundred thirty-four thousand, four hundred twelve".