10091191210 has 16 divisors (see below), whose sum is σ = 18296731656. Its totient is φ = 4007012608.

The previous prime is 10091191183. The next prime is 10091191217. The reversal of 10091191210 is 1219119001.

It can be written as a sum of positive squares in 4 ways, for example, as 6636220369 + 3454970841 = 81463^2 + 58779^2 .

It is not an unprimeable number, because it can be changed into a prime (10091191217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3681547 + ... + 3684286.

Almost surely, 2^10091191210 is an apocalyptic number.

10091191210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10091191210 is a deficient number, since it is larger than the sum of its proper divisors (8205540446).

10091191210 is a wasteful number, since it uses less digits than its factorization.

10091191210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365977.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 10091191210 in words is "ten billion, ninety-one million, one hundred ninety-one thousand, two hundred ten".