12225223040 has 64 divisors (see below), whose sum is σ = 29637666720. Its totient is φ = 4821196800.

The previous prime is 12225223037. The next prime is 12225223069. The reversal of 12225223040 is 4032252221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 12225222997 and 12225223015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89081 + ... + 179960.

Almost surely, 2^12225223040 is an apocalyptic number.

12225223040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12225223040 is an abundant number, since it is smaller than the sum of its proper divisors (17412443680).

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

12225223040 is an equidigital number, since it uses as much as digits as its factorization.

12225223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269131 (or 269119 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 12225223040 its reverse (4032252221), we get a palindrome (16257475261).

The spelling of 12225223040 in words is "twelve billion, two hundred twenty-five million, two hundred twenty-three thousand, forty".