1212002011331 has 8 divisors (see below), whose sum is σ = 1215333603120. Its totient is φ = 1208671123968.

The previous prime is 1212002011327. The next prime is 1212002011333. The reversal of 1212002011331 is 1331102002121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212002011331 - 2² = 1212002011327 is a prime.

It is a super-3 number, since 3×1212002011331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212002011333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3367475 + ... + 3709971.

It is an arithmetic number, because the mean of its divisors is an integer number (151916700390).

Almost surely, 2^{1212002011331} is an apocalyptic number.

1212002011331 is a deficient number, since it is larger than the sum of its proper divisors (3331591789).

1212002011331 is an equidigital number, since it uses as much as digits as its factorization.

1212002011331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352213.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1212002011331 its reverse (1331102002121), we get a palindrome (2543104013452).

The spelling of 1212002011331 in words is "one trillion, two hundred twelve billion, two million, eleven thousand, three hundred thirty-one".