1212043140032 has 112 divisors (see below), whose sum is σ = 2556337605120. Its totient is φ = 568202342400.

The previous prime is 1212043139963. The next prime is 1212043140041. The reversal of 1212043140032 is 2300413402121.

It is a super-2 number, since 2×1212043140032² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647804057 + ... + 647805927.

Almost surely, 2^{1212043140032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212043140032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278168802560).

1212043140032 is an abundant number, since it is smaller than the sum of its proper divisors (1344294465088).

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

1212043140032 is a wasteful number, since it uses less digits than its factorization.

1212043140032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1212043140032 its reverse (2300413402121), we get a palindrome (3512456542153).

The spelling of 1212043140032 in words is "one trillion, two hundred twelve billion, forty-three million, one hundred forty thousand, thirty-two".