1223042100400 has 30 divisors (see below), whose sum is σ = 2938358647172. Its totient is φ = 489216840000.

The previous prime is 1223042100389. The next prime is 1223042100407. The reversal of 1223042100400 is 40012403221.

It is not an unprimeable number, because it can be changed into a prime (1223042100407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1528802226 + ... + 1528803025.

Almost surely, 2^{1223042100400} is an apocalyptic number.

1223042100400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223042100400 is an abundant number, since it is smaller than the sum of its proper divisors (1715316546772).

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

1223042100400 is a wasteful number, since it uses less digits than its factorization.

1223042100400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057605269 (or 3057605258 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1223042100400 its reverse (40012403221), we get a palindrome (1263054503621).

The spelling of 1223042100400 in words is "one trillion, two hundred twenty-three billion, forty-two million, one hundred thousand, four hundred".