1200201211 has 4 divisors (see below), whose sum is σ = 1309310424. Its totient is φ = 1091092000.

The previous prime is 1200201209. The next prime is 1200201263. The reversal of 1200201211 is 1121020021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200201211 - 2¹ = 1200201209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200204211) 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 3 ways as a sum of consecutive naturals, for example, 54554590 + ... + 54554611.

It is an arithmetic number, because the mean of its divisors is an integer number (327327606).

Almost surely, 2^1200201211 is an apocalyptic number.

1200201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200201211 is a deficient number, since it is larger than the sum of its proper divisors (109109213).

1200201211 is a wasteful number, since it uses less digits than its factorization.

1200201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109109212.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1200201211 is about 34643.9202602708. The cubic root of 1200201211 is about 1062.7179599170.

Adding to 1200201211 its reverse (1121020021), we get a palindrome (2321221232).

The spelling of 1200201211 in words is "one billion, two hundred million, two hundred one thousand, two hundred eleven".