2012553221240 has 32 divisors (see below), whose sum is σ = 4528285691760. Its totient is φ = 805014009600.

The previous prime is 2012553221219. The next prime is 2012553221279. The reversal of 2012553221240 is 421223552102.

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, 7455020 + ... + 7720260.

Almost surely, 2^{2012553221240} is an apocalyptic number.

2012553221240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012553221240 is an abundant number, since it is smaller than the sum of its proper divisors (2515732470520).

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

2012553221240 is a wasteful number, since it uses less digits than its factorization.

2012553221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454943 (or 454939 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 2012553221240 its reverse (421223552102), we get a palindrome (2433776773342).

The spelling of 2012553221240 in words is "two trillion, twelve billion, five hundred fifty-three million, two hundred twenty-one thousand, two hundred forty".