1242040333212 has 144 divisors (see below), whose sum is σ = 3636999055872. Its totient is φ = 350047451520.

The previous prime is 1242040333181. The next prime is 1242040333271. The reversal of 1242040333212 is 2123330402421.

1242040333212 is a `hidden beast` number, since 1 + 2 + 42 + 0 + 403 + 3 + 3 + 212 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 13486762 + ... + 13578542.

It is an arithmetic number, because the mean of its divisors is an integer number (25256937888).

Almost surely, 2^{1242040333212} is an apocalyptic number.

1242040333212 is a gapful number since it is divisible by the number (12) 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 1242040333212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818499527936).

1242040333212 is an abundant number, since it is smaller than the sum of its proper divisors (2394958722660).

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

1242040333212 is a wasteful number, since it uses less digits than its factorization.

1242040333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92528 (or 92523 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1242040333212 its reverse (2123330402421), we get a palindrome (3365370735633).

The spelling of 1242040333212 in words is "one trillion, two hundred forty-two billion, forty million, three hundred thirty-three thousand, two hundred twelve".