1200110211221 has 8 divisors (see below), whose sum is σ = 1206997224000. Its totient is φ = 1193231761920.

The previous prime is 1200110211197. The next prime is 1200110211227. The reversal of 1200110211221 is 1221120110021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200110211221 - 2²² = 1200106016917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200110211196 and 1200110211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200110211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859675 + ... + 2420456.

It is an arithmetic number, because the mean of its divisors is an integer number (150874653000).

Almost surely, 2^{1200110211221} is an apocalyptic number.

It is an amenable number.

1200110211221 is a deficient number, since it is larger than the sum of its proper divisors (6887012779).

1200110211221 is a wasteful number, since it uses less digits than its factorization.

1200110211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281739.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1200110211221 its reverse (1221120110021), we get a palindrome (2421230321242).

The spelling of 1200110211221 in words is "one trillion, two hundred billion, one hundred ten million, two hundred eleven thousand, two hundred twenty-one".