1200211000111 has 4 divisors (see below), whose sum is σ = 1200213203112. Its totient is φ = 1200208797112.

The previous prime is 1200211000073. The next prime is 1200211000141. The reversal of 1200211000111 is 1110001120021.

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 1200211000111 - 2⁷ = 1200210999983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200211000141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379125 + ... + 1595041.

It is an arithmetic number, because the mean of its divisors is an integer number (300053300778).

Almost surely, 2^{1200211000111} is an apocalyptic number.

1200211000111 is a deficient number, since it is larger than the sum of its proper divisors (2203001).

1200211000111 is an equidigital number, since it uses as much as digits as its factorization.

1200211000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203000.

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

Adding to 1200211000111 its reverse (1110001120021), we get a palindrome (2310212120132).

The spelling of 1200211000111 in words is "one trillion, two hundred billion, two hundred eleven million, one hundred eleven", and thus it is an aban number.