1102112001 has 20 divisors (see below), whose sum is σ = 1647983700. Its totient is φ = 734018976.

The previous prime is 1102111993. The next prime is 1102112017. The reversal of 1102112001 is 1002112011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 491774976 + 610337025 = 22176^2 + 24705^2 .

It is not a de Polignac number, because 1102112001 - 2³ = 1102111993 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 (1102152001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 83695 + ... + 95963.

It is an arithmetic number, because the mean of its divisors is an integer number (82399185).

Almost surely, 2^1102112001 is an apocalyptic number.

It is an amenable number.

1102112001 is a deficient number, since it is larger than the sum of its proper divisors (545871699).

1102112001 is a wasteful number, since it uses less digits than its factorization.

1102112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390 (or 13381 counting only the distinct ones).

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

The square root of 1102112001 is about 33198.0722482496. The cubic root of 1102112001 is about 1032.9403526712.

Adding to 1102112001 its reverse (1002112011), we get a palindrome (2104224012).

The spelling of 1102112001 in words is "one billion, one hundred two million, one hundred twelve thousand, one".