1200221202211 has 4 divisors (see below), whose sum is σ = 1200224441392. Its totient is φ = 1200217963032.

The previous prime is 1200221202151. The next prime is 1200221202223. The reversal of 1200221202211 is 1122021220021.

It is a happy number.

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 1200221202211 - 2²³ = 1200212813603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200221202241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979455 + ... + 1832968.

It is an arithmetic number, because the mean of its divisors is an integer number (300056110348).

Almost surely, 2^{1200221202211} is an apocalyptic number.

1200221202211 is a deficient number, since it is larger than the sum of its proper divisors (3239181).

1200221202211 is an equidigital number, since it uses as much as digits as its factorization.

1200221202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239180.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200221202211 its reverse (1122021220021), we get a palindrome (2322242422232).

The spelling of 1200221202211 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred two thousand, two hundred eleven".