20112042444400 has 30 divisors (see below), whose sum is σ = 48319181973632. Its totient is φ = 8044816977600.

The previous prime is 20112042444379. The next prime is 20112042444451. The reversal of 20112042444400 is 444424021102.

It is a happy number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 25140052656 + ... + 25140053455.

Almost surely, 2^{20112042444400} is an apocalyptic number.

20112042444400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112042444400 is an abundant number, since it is smaller than the sum of its proper divisors (28207139529232).

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

20112042444400 is a wasteful number, since it uses less digits than its factorization.

20112042444400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50280106129 (or 50280106118 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 20112042444400 its reverse (444424021102), we get a palindrome (20556466465502).

The spelling of 20112042444400 in words is "twenty trillion, one hundred twelve billion, forty-two million, four hundred forty-four thousand, four hundred".