10020112191 has 24 divisors (see below), whose sum is σ = 14891076720. Its totient is φ = 6487986816.

The previous prime is 10020112187. The next prime is 10020112309. The reversal of 10020112191 is 19121102001.

It is a happy number.

It is not a de Polignac number, because 10020112191 - 2² = 10020112187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020112111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163036 + ... + 215918.

It is an arithmetic number, because the mean of its divisors is an integer number (620461530).

Almost surely, 2^10020112191 is an apocalyptic number.

10020112191 is a deficient number, since it is larger than the sum of its proper divisors (4870964529).

10020112191 is a wasteful number, since it uses less digits than its factorization.

10020112191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53495 (or 53492 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 10020112191 its reverse (19121102001), we get a palindrome (29141214192).

The spelling of 10020112191 in words is "ten billion, twenty million, one hundred twelve thousand, one hundred ninety-one".