1212033331231 has 8 divisors (see below), whose sum is σ = 1213409150928. Its totient is φ = 1210657776000.

The previous prime is 1212033331213. The next prime is 1212033331241. The reversal of 1212033331231 is 1321333302121.

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 1212033331231 - 2¹¹ = 1212033329183 is a prime.

It is a super-2 number, since 2×1212033331231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212033331196 and 1212033331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212033331241) 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 7 ways as a sum of consecutive naturals, for example, 9961221 + ... + 10082161.

It is an arithmetic number, because the mean of its divisors is an integer number (151676143866).

Almost surely, 2^{1212033331231} is an apocalyptic number.

1212033331231 is a deficient number, since it is larger than the sum of its proper divisors (1375819697).

1212033331231 is a wasteful number, since it uses less digits than its factorization.

1212033331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132233.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1212033331231 its reverse (1321333302121), we get a palindrome (2533366633352).

The spelling of 1212033331231 in words is "one trillion, two hundred twelve billion, thirty-three million, three hundred thirty-one thousand, two hundred thirty-one".