10120209992 has 16 divisors (see below), whose sum is σ = 18982268460. Its totient is φ = 5058271744.

The previous prime is 10120209991. The next prime is 10120210033. The reversal of 10120209992 is 29990202101.

It can be written as a sum of positive squares in 2 ways, for example, as 10115129476 + 5080516 = 100574^2 + 2254^2 .

It is not an unprimeable number, because it can be changed into a prime (10120209991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205553 + ... + 249984.

Almost surely, 2^10120209992 is an apocalyptic number.

It is an amenable number.

10120209992 is a deficient number, since it is larger than the sum of its proper divisors (8862058468).

10120209992 is a wasteful number, since it uses less digits than its factorization.

10120209992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458320 (or 458316 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 10120209992 in words is "ten billion, one hundred twenty million, two hundred nine thousand, nine hundred ninety-two".