10112012120091 has 8 divisors (see below), whose sum is σ = 15408780373504. Its totient is φ = 5778292640040.

The previous prime is 10112012120081. The next prime is 10112012120099. The reversal of 10112012120091 is 19002121021101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10112012120091 - 2¹⁷ = 10112011989019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 481524386671 = 10112012120091 / (1 + 0 + 1 + 1 + 2 + 0 + 1 + 2 + 1 + 2 + 0 + 0 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (10112012120099) 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, 240762193315 + ... + 240762193356.

It is an arithmetic number, because the mean of its divisors is an integer number (1926097546688).

Almost surely, 2^{10112012120091} is an apocalyptic number.

10112012120091 is a deficient number, since it is larger than the sum of its proper divisors (5296768253413).

10112012120091 is an equidigital number, since it uses as much as digits as its factorization.

10112012120091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481524386681.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 10112012120091 its reverse (19002121021101), we get a palindrome (29114133141192).

The spelling of 10112012120091 in words is "ten trillion, one hundred twelve billion, twelve million, one hundred twenty thousand, ninety-one".