10120112001 has 16 divisors (see below), whose sum is σ = 15075598720. Its totient is φ = 6709463280.

The previous prime is 10120111999. The next prime is 10120112003. The reversal of 10120112001 is 10021102101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10120111999) and next prime (10120112003).

It is not a de Polignac number, because 10120112001 - 2¹ = 10120111999 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030525 + ... + 1040298.

It is an arithmetic number, because the mean of its divisors is an integer number (942224920).

Almost surely, 2^10120112001 is an apocalyptic number.

It is an amenable number.

10120112001 is a deficient number, since it is larger than the sum of its proper divisors (4955486719).

10120112001 is a wasteful number, since it uses less digits than its factorization.

10120112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071013 (or 2071007 counting only the distinct ones).

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

Adding to 10120112001 its reverse (10021102101), we get a palindrome (20141214102).

The spelling of 10120112001 in words is "ten billion, one hundred twenty million, one hundred twelve thousand, one".