1200120120211 has 4 divisors (see below), whose sum is σ = 1200131612272. Its totient is φ = 1200108628152.

The previous prime is 1200120120197. The next prime is 1200120120217. The reversal of 1200120120211 is 1120210210021.

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 1200120120211 - 2¹⁷ = 1200119989139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200120120191 and 1200120120200.

It is not an unprimeable number, because it can be changed into a prime (1200120120217) 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, 5587935 + ... + 5798728.

It is an arithmetic number, because the mean of its divisors is an integer number (300032903068).

Almost surely, 2^{1200120120211} is an apocalyptic number.

1200120120211 is a deficient number, since it is larger than the sum of its proper divisors (11492061).

1200120120211 is a wasteful number, since it uses less digits than its factorization.

1200120120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11492060.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200120120211 its reverse (1120210210021), we get a palindrome (2320330330232).

The spelling of 1200120120211 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred twenty thousand, two hundred eleven".