1331031224012 has 24 divisors (see below), whose sum is σ = 2802170999040. Its totient is φ = 540418692240.

The previous prime is 1331031223999. The next prime is 1331031224027. The reversal of 1331031224012 is 2104221301331.

It is a super-2 number, since 2×1331031224012² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1250968664 + ... + 1250969727.

It is an arithmetic number, because the mean of its divisors is an integer number (116757124960).

Almost surely, 2^{1331031224012} is an apocalyptic number.

It is an amenable number.

1331031224012 is an abundant number, since it is smaller than the sum of its proper divisors (1471139775028).

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

1331031224012 is a wasteful number, since it uses less digits than its factorization.

1331031224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501938421 (or 2501938419 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1331031224012 its reverse (2104221301331), we get a palindrome (3435252525343).

The spelling of 1331031224012 in words is "one trillion, three hundred thirty-one billion, thirty-one million, two hundred twenty-four thousand, twelve".