1011201211 has 2 divisors, whose sum is σ = 1011201212. Its totient is φ = 1011201210.

The previous prime is 1011201181. The next prime is 1011201227. The reversal of 1011201211 is 1121021101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011201211 - 2¹⁷ = 1011070139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011201271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505600605 + 505600606.

It is an arithmetic number, because the mean of its divisors is an integer number (505600606).

Almost surely, 2^1011201211 is an apocalyptic number.

1011201211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011201211 is an equidigital number, since it uses as much as digits as its factorization.

1011201211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1011201211 is about 31799.3901042143. The cubic root of 1011201211 is about 1003.7198823176.

Adding to 1011201211 its reverse (1121021101), we get a palindrome (2132222312).

The spelling of 1011201211 in words is "one billion, eleven million, two hundred one thousand, two hundred eleven".