1222233100400 has 120 divisors (see below), whose sum is σ = 3163718540304. Its totient is φ = 451082649600.

The previous prime is 1222233100397. The next prime is 1222233100411. The reversal of 1222233100400 is 40013322221.

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 23 ways as a sum of consecutive naturals, for example, 11736560 + ... + 11840240.

Almost surely, 2^{1222233100400} is an apocalyptic number.

1222233100400 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 1222233100400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581859270152).

1222233100400 is an abundant number, since it is smaller than the sum of its proper divisors (1941485439904).

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

1222233100400 is a wasteful number, since it uses less digits than its factorization.

1222233100400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105979 (or 105968 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1222233100400 its reverse (40013322221), we get a palindrome (1262246422621).

The spelling of 1222233100400 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-three million, one hundred thousand, four hundred".