1201211211 has 16 divisors (see below), whose sum is σ = 1711684224. Its totient is φ = 746653824.

The previous prime is 1201211203. The next prime is 1201211269. The reversal of 1201211211 is 1121121021.

It is not a de Polignac number, because 1201211211 - 2³ = 1201211203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201211201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104605 + ... + 115518.

It is an arithmetic number, because the mean of its divisors is an integer number (106980264).

Almost surely, 2^1201211211 is an apocalyptic number.

1201211211 is a deficient number, since it is larger than the sum of its proper divisors (510473013).

1201211211 is a wasteful number, since it uses less digits than its factorization.

1201211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220250.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1201211211 is about 34658.4940671115. The cubic root of 1201211211 is about 1063.0159777793.

Adding to 1201211211 its reverse (1121121021), we get a palindrome (2322332232).

The spelling of 1201211211 in words is "one billion, two hundred one million, two hundred eleven thousand, two hundred eleven".