1001223233312 has 96 divisors (see below), whose sum is σ = 2090020605120. Its totient is φ = 470815027200.

The previous prime is 1001223233299. The next prime is 1001223233317. The reversal of 1001223233312 is 2133323221001.

It is not an unprimeable number, because it can be changed into a prime (1001223233317) 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 15 ways as a sum of consecutive naturals, for example, 94440812 + ... + 94451412.

It is an arithmetic number, because the mean of its divisors is an integer number (21771047970).

Almost surely, 2^{1001223233312} 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 1001223233312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045010302560).

1001223233312 is an abundant number, since it is smaller than the sum of its proper divisors (1088797371808).

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

1001223233312 is a wasteful number, since it uses less digits than its factorization.

1001223233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746 (or 11738 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1001223233312 its reverse (2133323221001), we get a palindrome (3134546454313).

The spelling of 1001223233312 in words is "one trillion, one billion, two hundred twenty-three million, two hundred thirty-three thousand, three hundred twelve".