1240332451212 has 24 divisors (see below), whose sum is σ = 2908652320000. Its totient is φ = 411366540816.

The previous prime is 1240332451159. The next prime is 1240332451231. The reversal of 1240332451212 is 2121542330421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240332451212.

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, 259698712 + ... + 259703487.

Almost surely, 2^{1240332451212} is an apocalyptic number.

1240332451212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240332451212 is an abundant number, since it is smaller than the sum of its proper divisors (1668319868788).

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

1240332451212 is a wasteful number, since it uses less digits than its factorization.

1240332451212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519402405 (or 519402403 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1240332451212 its reverse (2121542330421), we get a palindrome (3361874781633).

The spelling of 1240332451212 in words is "one trillion, two hundred forty billion, three hundred thirty-two million, four hundred fifty-one thousand, two hundred twelve".