1110122001 has 12 divisors (see below), whose sum is σ = 1658803380. Its totient is φ = 714561120.

The previous prime is 1110121963. The next prime is 1110122003. The reversal of 1110122001 is 1002210111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 225000000 + 885122001 = 15000^2 + 29751^2 .

It is not a de Polignac number, because 1110122001 - 2⁶ = 1110121937 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1110122003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2126410 + ... + 2126931.

It is an arithmetic number, because the mean of its divisors is an integer number (138233615).

Almost surely, 2^1110122001 is an apocalyptic number.

It is an amenable number.

1110122001 is a deficient number, since it is larger than the sum of its proper divisors (548681379).

1110122001 is a wasteful number, since it uses less digits than its factorization.

1110122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253376 (or 4253373 counting only the distinct ones).

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

The square root of 1110122001 is about 33318.4933783027. The cubic root of 1110122001 is about 1035.4367378995.

Adding to 1110122001 its reverse (1002210111), we get a palindrome (2112332112).

The spelling of 1110122001 in words is "one billion, one hundred ten million, one hundred twenty-two thousand, one".