112012001001 has 24 divisors (see below), whose sum is σ = 163968484680. Its totient is φ = 73675219200.

The previous prime is 112012000979. The next prime is 112012001011. The reversal of 112012001001 is 100100210211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23431955625 + 88580045376 = 153075^2 + 297624^2 .

It is not a de Polignac number, because 112012001001 - 2⁹ = 112012000489 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 (112012001011) 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, 217591 + ... + 520931.

It is an arithmetic number, because the mean of its divisors is an integer number (6832020195).

Almost surely, 2^112012001001 is an apocalyptic number.

It is an amenable number.

112012001001 is a deficient number, since it is larger than the sum of its proper divisors (51956483679).

112012001001 is a wasteful number, since it uses less digits than its factorization.

112012001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303897 (or 303894 counting only the distinct ones).

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

Adding to 112012001001 its reverse (100100210211), we get a palindrome (212112211212).

The spelling of 112012001001 in words is "one hundred twelve billion, twelve million, one thousand, one".