1224433421200 has 120 divisors (see below), whose sum is σ = 3209858948736. Its totient is φ = 445147200000.

The previous prime is 1224433421191. The next prime is 1224433421201. The reversal of 1224433421200 is 21243344221.

It is not an unprimeable number, because it can be changed into a prime (1224433421201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20875114 + ... + 20933686.

Almost surely, 2^{1224433421200} is an apocalyptic number.

1224433421200 is a gapful number since it is divisible by the number (10) 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 1224433421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604929474368).

1224433421200 is an abundant number, since it is smaller than the sum of its proper divisors (1985425527536).

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

1224433421200 is a wasteful number, since it uses less digits than its factorization.

1224433421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63353 (or 63342 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1224433421200 its reverse (21243344221), we get a palindrome (1245676765421).

The spelling of 1224433421200 in words is "one trillion, two hundred twenty-four billion, four hundred thirty-three million, four hundred twenty-one thousand, two hundred".