1001312212232 has 8 divisors (see below), whose sum is σ = 1877460397950. Its totient is φ = 500656106112.

The previous prime is 1001312212211. The next prime is 1001312212237. The reversal of 1001312212232 is 2322122131001.

It can be written as a sum of positive squares in only one way, i.e., 593494588996 + 407817623236 = 770386^2 + 638606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1001312212232² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001312212237) 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 as a sum of consecutive naturals, namely, 62582013257 + ... + 62582013272.

Almost surely, 2^{1001312212232} is an apocalyptic number.

It is an amenable number.

1001312212232 is a deficient number, since it is larger than the sum of its proper divisors (876148185718).

1001312212232 is a wasteful number, since it uses less digits than its factorization.

1001312212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125164026535 (or 125164026531 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1001312212232 its reverse (2322122131001), we get a palindrome (3323434343233).

The spelling of 1001312212232 in words is "one trillion, one billion, three hundred twelve million, two hundred twelve thousand, two hundred thirty-two".