1211000200211 has 4 divisors (see below), whose sum is σ = 1212108161232. Its totient is φ = 1209892239192.

The previous prime is 1211000200199. The next prime is 1211000200301. The reversal of 1211000200211 is 1120020001121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211000200211 is a prime.

It is a super-2 number, since 2×1211000200211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211000200192 and 1211000200201.

It is not an unprimeable number, because it can be changed into a prime (1211000200411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553978871 + ... + 553981056.

It is an arithmetic number, because the mean of its divisors is an integer number (303027040308).

Almost surely, 2^{1211000200211} is an apocalyptic number.

1211000200211 is a deficient number, since it is larger than the sum of its proper divisors (1107961021).

1211000200211 is a wasteful number, since it uses less digits than its factorization.

1211000200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107961020.

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

Adding to 1211000200211 its reverse (1120020001121), we get a palindrome (2331020201332).

The spelling of 1211000200211 in words is "one trillion, two hundred eleven billion, two hundred thousand, two hundred eleven".