1212011012442 has 8 divisors (see below), whose sum is σ = 2424022024896. Its totient is φ = 404003670812.

The previous prime is 1212011012441. The next prime is 1212011012449. The reversal of 1212011012442 is 2442101102121.

It is a sphenic number, since it is the product of 3 distinct primes.

1212011012442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1212011012441) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101000917698 + ... + 101000917709.

It is an arithmetic number, because the mean of its divisors is an integer number (303002753112).

Almost surely, 2^{1212011012442} is an apocalyptic number.

1212011012442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1212011012442 is a wasteful number, since it uses less digits than its factorization.

1212011012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202001835412.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1212011012442 its reverse (2442101102121), we get a palindrome (3654112114563).

The spelling of 1212011012442 in words is "one trillion, two hundred twelve billion, eleven million, twelve thousand, four hundred forty-two".