1200110211 has 6 divisors (see below), whose sum is σ = 1733492540. Its totient is φ = 800073468.

The previous prime is 1200110203. The next prime is 1200110213. The reversal of 1200110211 is 1120110021.

It is a happy number.

It is not a de Polignac number, because 1200110211 - 2³ = 1200110203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 133345579 = 1200110211 / (1 + 2 + 0 + 0 + 1 + 1 + 0 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200110193 and 1200110202.

It is not an unprimeable number, because it can be changed into a prime (1200110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66672781 + ... + 66672798.

Almost surely, 2^1200110211 is an apocalyptic number.

1200110211 is a deficient number, since it is larger than the sum of its proper divisors (533382329).

1200110211 is a wasteful number, since it uses less digits than its factorization.

1200110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133345585 (or 133345582 counting only the distinct ones).

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

The square root of 1200110211 is about 34642.6068736173. The cubic root of 1200110211 is about 1062.6911005933.

Adding to 1200110211 its reverse (1120110021), we get a palindrome (2320220232).

The spelling of 1200110211 in words is "one billion, two hundred million, one hundred ten thousand, two hundred eleven".