1200211211 has 2 divisors, whose sum is σ = 1200211212. Its totient is φ = 1200211210.

The previous prime is 1200211183. The next prime is 1200211253. The reversal of 1200211211 is 1121120021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200211211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200211192 and 1200211201.

It is not a weakly prime, because it can be changed into another prime (1200211261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600105605 + 600105606.

It is an arithmetic number, because the mean of its divisors is an integer number (600105606).

Almost surely, 2^1200211211 is an apocalyptic number.

1200211211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200211211 is an equidigital number, since it uses as much as digits as its factorization.

1200211211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1200211211 is about 34644.0645854380. The cubic root of 1200211211 is about 1062.7209114082.

Adding to 1200211211 its reverse (1121120021), we get a palindrome (2321331232).

The spelling of 1200211211 in words is "one billion, two hundred million, two hundred eleven thousand, two hundred eleven".