112001121009 has 48 divisors (see below), whose sum is σ = 173894011200. Its totient is φ = 71952463296.

The previous prime is 112001120989. The next prime is 112001121049. The reversal of 112001121009 is 900121100211.

It is a happy number.

It is not a de Polignac number, because 112001121009 - 2⁸ = 112001120753 is a prime.

It is a super-2 number, since 2×112001121009² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112001120982 and 112001121000.

It is not an unprimeable number, because it can be changed into a prime (112001121049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3670387 + ... + 3700775.

It is an arithmetic number, because the mean of its divisors is an integer number (3622791900).

Almost surely, 2^112001121009 is an apocalyptic number.

It is an amenable number.

112001121009 is a deficient number, since it is larger than the sum of its proper divisors (61892890191).

112001121009 is an equidigital number, since it uses as much as digits as its factorization.

112001121009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30956 (or 30944 counting only the distinct ones).

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

The spelling of 112001121009 in words is "one hundred twelve billion, one million, one hundred twenty-one thousand, nine".