1200220112211 has 4 divisors (see below), whose sum is σ = 1600293482952. Its totient is φ = 800146741472.

The previous prime is 1200220112167. The next prime is 1200220112249. The reversal of 1200220112211 is 1122110220021.

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 1200220112211 - 2¹¹ = 1200220110163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200220112911) 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, 200036685366 + ... + 200036685371.

It is an arithmetic number, because the mean of its divisors is an integer number (400073370738).

Almost surely, 2^{1200220112211} is an apocalyptic number.

1200220112211 is a deficient number, since it is larger than the sum of its proper divisors (400073370741).

1200220112211 is an equidigital number, since it uses as much as digits as its factorization.

1200220112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400073370740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200220112211 its reverse (1122110220021), we get a palindrome (2322330332232).

The spelling of 1200220112211 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".