1200000000211 has 16 divisors (see below), whose sum is σ = 1235031452928. Its totient is φ = 1165534999200.

The previous prime is 1200000000203. The next prime is 1200000000239. The reversal of 1200000000211 is 1120000000021.

It is a cyclic number.

It is not a de Polignac number, because 1200000000211 - 2³ = 1200000000203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200000000194 and 1200000000203.

It is not an unprimeable number, because it can be changed into a prime (1200000000281) 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, 1734316 + ... + 2325478.

It is an arithmetic number, because the mean of its divisors is an integer number (77189465808).

Almost surely, 2^{1200000000211} is an apocalyptic number.

1200000000211 is a deficient number, since it is larger than the sum of its proper divisors (35031452717).

1200000000211 is a wasteful number, since it uses less digits than its factorization.

1200000000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591642.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1200000000211 its reverse (1120000000021), we get a palindrome (2320000000232).

The spelling of 1200000000211 in words is "one trillion, two hundred billion, two hundred eleven", and thus it is an aban number.