1200121333211 has 8 divisors (see below), whose sum is σ = 1206337716144. Its totient is φ = 1193906207200.

The previous prime is 1200121333207. The next prime is 1200121333217. The reversal of 1200121333211 is 1123331210021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200121333211 - 2² = 1200121333207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200121333217) 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 7 ways as a sum of consecutive naturals, for example, 1631441 + ... + 2249853.

It is an arithmetic number, because the mean of its divisors is an integer number (150792214518).

Almost surely, 2^{1200121333211} is an apocalyptic number.

1200121333211 is a deficient number, since it is larger than the sum of its proper divisors (6216382933).

1200121333211 is an equidigital number, since it uses as much as digits as its factorization.

1200121333211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628461.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1200121333211 its reverse (1123331210021), we get a palindrome (2323452543232).

The spelling of 1200121333211 in words is "one trillion, two hundred billion, one hundred twenty-one million, three hundred thirty-three thousand, two hundred eleven".