2012010042440 has 16 divisors (see below), whose sum is σ = 4527022595580. Its totient is φ = 804804016960.

The previous prime is 2012010042439. The next prime is 2012010042457. The reversal of 2012010042440 is 442400102102.

It can be written as a sum of positive squares in 2 ways, for example, as 1993354307044 + 18655735396 = 1411862^2 + 136586^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25150125491 + ... + 25150125570.

Almost surely, 2^{2012010042440} is an apocalyptic number.

2012010042440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012010042440 is an abundant number, since it is smaller than the sum of its proper divisors (2515012553140).

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

2012010042440 is a wasteful number, since it uses less digits than its factorization.

2012010042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50300251072 (or 50300251068 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2012010042440 its reverse (442400102102), we get a palindrome (2454410144542).

The spelling of 2012010042440 in words is "two trillion, twelve billion, ten million, forty-two thousand, four hundred forty".