20112144244 has 24 divisors (see below), whose sum is σ = 35480749248. Its totient is φ = 9975026880.

The previous prime is 20112144229. The next prime is 20112144251. The reversal of 20112144244 is 44244121102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310089 + ... + 369295.

It is an arithmetic number, because the mean of its divisors is an integer number (1478364552).

Almost surely, 2^20112144244 is an apocalyptic number.

It is an amenable number.

20112144244 is a deficient number, since it is larger than the sum of its proper divisors (15368605004).

20112144244 is a wasteful number, since it uses less digits than its factorization.

20112144244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59895 (or 59893 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 20112144244 its reverse (44244121102), we get a palindrome (64356265346).

The spelling of 20112144244 in words is "twenty billion, one hundred twelve million, one hundred forty-four thousand, two hundred forty-four".