1223240110400 has 672 divisors, whose sum is σ = 3907189161984. Its totient is φ = 368831232000.

The previous prime is 1223240110373. The next prime is 1223240110423. The reversal of 1223240110400 is 40110423221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 462121877 + ... + 462124523.

Almost surely, 2^{1223240110400} is an apocalyptic number.

1223240110400 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 1223240110400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953594580992).

1223240110400 is an abundant number, since it is smaller than the sum of its proper divisors (2683949051584).

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

1223240110400 is a wasteful number, since it uses less digits than its factorization.

1223240110400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1223240110400 its reverse (40110423221), we get a palindrome (1263350533621).

The spelling of 1223240110400 in words is "one trillion, two hundred twenty-three billion, two hundred forty million, one hundred ten thousand, four hundred".