2100344222400 has 168 divisors, whose sum is σ = 6913041417984. Its totient is φ = 558290457600.

The previous prime is 2100344222357. The next prime is 2100344222407. The reversal of 2100344222400 is 42224430012.

It is a super-2 number, since 2×2100344222400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2100344222407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 789309 + ... + 2196291.

Almost surely, 2^{2100344222400} is an apocalyptic number.

2100344222400 is a gapful number since it is divisible by the number (20) 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 2100344222400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3456520708992).

2100344222400 is an abundant number, since it is smaller than the sum of its proper divisors (4812697195584).

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

2100344222400 is a wasteful number, since it uses less digits than its factorization.

2100344222400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407319 (or 1407304 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2100344222400 its reverse (42224430012), we get a palindrome (2142568652412).

The spelling of 2100344222400 in words is "two trillion, one hundred billion, three hundred forty-four million, two hundred twenty-two thousand, four hundred".