1110021201 has 12 divisors (see below), whose sum is σ = 1646698612. Its totient is φ = 720013536.

The previous prime is 1110021191. The next prime is 1110021217. The reversal of 1110021201 is 1021200111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 809345601 + 300675600 = 28449^2 + 17340^2 .

It is not a de Polignac number, because 1110021201 - 2⁵ = 1110021169 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 (1110021301) 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 11 ways as a sum of consecutive naturals, for example, 1666366 + ... + 1667031.

Almost surely, 2^1110021201 is an apocalyptic number.

It is an amenable number.

1110021201 is a deficient number, since it is larger than the sum of its proper divisors (536677411).

1110021201 is a wasteful number, since it uses less digits than its factorization.

1110021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333440 (or 3333437 counting only the distinct ones).

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

The square root of 1110021201 is about 33316.9806705230. The cubic root of 1110021201 is about 1035.4053974455.

Adding to 1110021201 its reverse (1021200111), we get a palindrome (2131221312).

The spelling of 1110021201 in words is "one billion, one hundred ten million, twenty-one thousand, two hundred one".