112001021001 has 64 divisors (see below), whose sum is σ = 189236044800. Its totient is φ = 65027950848.

The previous prime is 112001020949. The next prime is 112001021023. The reversal of 112001021001 is 100120100211.

It is a happy number.

It is not a de Polignac number, because 112001021001 - 2¹¹ = 112001018953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (112001021081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 225670 + ... + 524336.

It is an arithmetic number, because the mean of its divisors is an integer number (2956813200).

Almost surely, 2^112001021001 is an apocalyptic number.

It is an amenable number.

112001021001 is a deficient number, since it is larger than the sum of its proper divisors (77235023799).

112001021001 is a wasteful number, since it uses less digits than its factorization.

112001021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298755 (or 298749 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 112001021001 its reverse (100120100211), we get a palindrome (212121121212).

The spelling of 112001021001 in words is "one hundred twelve billion, one million, twenty-one thousand, one".