1002112219688 has 8 divisors (see below), whose sum is σ = 1878960411930. Its totient is φ = 501056109840.

The previous prime is 1002112219687. The next prime is 1002112219721. The reversal of 1002112219688 is 8869122112001.

It can be written as a sum of positive squares in only one way, i.e., 840525907204 + 161586312484 = 916802^2 + 401978^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1002112219687) 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, 62632013723 + ... + 62632013738.

Almost surely, 2^{1002112219688} is an apocalyptic number.

It is an amenable number.

1002112219688 is a deficient number, since it is larger than the sum of its proper divisors (876848192242).

1002112219688 is a wasteful number, since it uses less digits than its factorization.

1002112219688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125264027467 (or 125264027463 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 1002112219688 in words is "one trillion, two billion, one hundred twelve million, two hundred nineteen thousand, six hundred eighty-eight".