201124424440 has 32 divisors (see below), whose sum is σ = 452544824160. Its totient is φ = 80447126400.

The previous prime is 201124424387. The next prime is 201124424441. The reversal of 201124424440 is 44424421102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201124424399 and 201124424408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201124424441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546750 + ... + 1671730.

It is an arithmetic number, because the mean of its divisors is an integer number (14142025755).

Almost surely, 2^201124424440 is an apocalyptic number.

201124424440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201124424440 is an abundant number, since it is smaller than the sum of its proper divisors (251420399720).

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

201124424440 is a wasteful number, since it uses less digits than its factorization.

201124424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165223 (or 165219 counting only the distinct ones).

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

Adding to 201124424440 its reverse (44424421102), we get a palindrome (245548845542).

The spelling of 201124424440 in words is "two hundred one billion, one hundred twenty-four million, four hundred twenty-four thousand, four hundred forty".