2012440440220 has 96 divisors (see below), whose sum is σ = 4856178797568. Its totient is φ = 686221258752.

The previous prime is 2012440440193. The next prime is 2012440440221. The reversal of 2012440440220 is 220440442102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012440440221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135173617 + ... + 135188503.

It is an arithmetic number, because the mean of its divisors is an integer number (50585195808).

Almost surely, 2^{2012440440220} is an apocalyptic number.

2012440440220 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 2012440440220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428089398784).

2012440440220 is an abundant number, since it is smaller than the sum of its proper divisors (2843738357348).

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

2012440440220 is a wasteful number, since it uses less digits than its factorization.

2012440440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20099 (or 20097 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 2012440440220 its reverse (220440442102), we get a palindrome (2232880882322).

The spelling of 2012440440220 in words is "two trillion, twelve billion, four hundred forty million, four hundred forty thousand, two hundred twenty".