1223411304400 has 120 divisors (see below), whose sum is σ = 2950212647520. Its totient is φ = 487541982720.

The previous prime is 1223411304383. The next prime is 1223411304413. The reversal of 1223411304400 is 44031143221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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, 129882891 + ... + 129892309.

It is an arithmetic number, because the mean of its divisors is an integer number (24585105396).

Almost surely, 2^{1223411304400} is an apocalyptic number.

1223411304400 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 1223411304400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475106323760).

1223411304400 is an abundant number, since it is smaller than the sum of its proper divisors (1726801343120).

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

1223411304400 is a wasteful number, since it uses less digits than its factorization.

1223411304400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10613 (or 10602 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1223411304400 its reverse (44031143221), we get a palindrome (1267442447621).

The spelling of 1223411304400 in words is "one trillion, two hundred twenty-three billion, four hundred eleven million, three hundred four thousand, four hundred".