12231204450 has 48 divisors (see below), whose sum is σ = 30847534560. Its totient is φ = 3206369920.

The previous prime is 12231204439. The next prime is 12231204481. The reversal of 12231204450 is 5440213221.

It is a self number, because there is not a number n which added to its sum of digits gives 12231204450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682179 + ... + 699878.

It is an arithmetic number, because the mean of its divisors is an integer number (642656970).

Almost surely, 2^12231204450 is an apocalyptic number.

12231204450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12231204450 is an abundant number, since it is smaller than the sum of its proper divisors (18616330110).

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

12231204450 is a wasteful number, since it uses less digits than its factorization.

12231204450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382131 (or 1382126 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12231204450 its reverse (5440213221), we get a palindrome (17671417671).

The spelling of 12231204450 in words is "twelve billion, two hundred thirty-one million, two hundred four thousand, four hundred fifty".