1201110201 has 20 divisors (see below), whose sum is σ = 1795585792. Its totient is φ = 800144568.

The previous prime is 1201110199. The next prime is 1201110257. The reversal of 1201110201 is 1020111021.

It is a happy number.

It is not a de Polignac number, because 1201110201 - 2¹ = 1201110199 is a prime.

It is a super-3 number, since 3×1201110201³ (a number of 28 digits) contains 333 as substring.

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 (1201110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122196 + ... + 131658.

Almost surely, 2^1201110201 is an apocalyptic number.

It is an amenable number.

1201110201 is a deficient number, since it is larger than the sum of its proper divisors (594475591).

1201110201 is an equidigital number, since it uses as much as digits as its factorization.

1201110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11042 (or 11033 counting only the distinct ones).

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

The square root of 1201110201 is about 34657.0368179393. The cubic root of 1201110201 is about 1062.9861805622.

Adding to 1201110201 its reverse (1020111021), we get a palindrome (2221221222).

It can be divided in two parts, 120111020 and 1, that added together give a palindrome (120111021).

The spelling of 1201110201 in words is "one billion, two hundred one million, one hundred ten thousand, two hundred one".