2123204420000 has 120 divisors (see below), whose sum is σ = 5227510936032. Its totient is φ = 848613600000.

The previous prime is 2123204419951. The next prime is 2123204420027. The reversal of 2123204420000 is 244023212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25778885 + ... + 25861115.

Almost surely, 2^{2123204420000} is an apocalyptic number.

2123204420000 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 2123204420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2613755468016).

2123204420000 is an abundant number, since it is smaller than the sum of its proper divisors (3104306516032).

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

2123204420000 is an equidigital number, since it uses as much as digits as its factorization.

2123204420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83552 (or 83529 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 2123204420000 its reverse (244023212), we get a palindrome (2123448443212).

The spelling of 2123204420000 in words is "two trillion, one hundred twenty-three billion, two hundred four million, four hundred twenty thousand".