112021100001 has 12 divisors (see below), whose sum is σ = 167027877120. Its totient is φ = 72271677240.

The previous prime is 112021099943. The next prime is 112021100003. The reversal of 112021100001 is 100001120211.

It is a happy number.

It is not a de Polignac number, because 112021100001 - 2¹⁰ = 112021098977 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 (112021100003) 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 11 ways as a sum of consecutive naturals, for example, 200754381 + ... + 200754938.

It is an arithmetic number, because the mean of its divisors is an integer number (13918989760).

Almost surely, 2^112021100001 is an apocalyptic number.

It is an amenable number.

112021100001 is a deficient number, since it is larger than the sum of its proper divisors (55006777119).

112021100001 is a wasteful number, since it uses less digits than its factorization.

112021100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401509356 (or 401509353 counting only the distinct ones).

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

Adding to 112021100001 its reverse (100001120211), we get a palindrome (212022220212).

The spelling of 112021100001 in words is "one hundred twelve billion, twenty-one million, one hundred thousand, one".