12401220224320 has 56 divisors (see below), whose sum is σ = 31084637551200. Its totient is φ = 4699409766912.

The previous prime is 12401220224249. The next prime is 12401220224321. The reversal of 12401220224320 is 2342202210421.

It is a super-2 number, since 2×12401220224320² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401220224321) 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, 1019831110 + ... + 1019843269.

Almost surely, 2^{12401220224320} is an apocalyptic number.

12401220224320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12401220224320 is an abundant number, since it is smaller than the sum of its proper divisors (18683417326880).

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

12401220224320 is a wasteful number, since it uses less digits than its factorization.

12401220224320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039674415 (or 2039674405 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12401220224320 its reverse (2342202210421), we get a palindrome (14743422434741).

The spelling of 12401220224320 in words is "twelve trillion, four hundred one billion, two hundred twenty million, two hundred twenty-four thousand, three hundred twenty".