1200110020221 has 24 divisors (see below), whose sum is σ = 1867342154304. Its totient is φ = 683586146880.

The previous prime is 1200110020159. The next prime is 1200110020231. The reversal of 1200110020221 is 1220200110021.

It is not a de Polignac number, because 1200110020221 - 2⁹ = 1200110019709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200110020197 and 1200110020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200110020231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12995545 + ... + 13087566.

It is an arithmetic number, because the mean of its divisors is an integer number (77805923096).

Almost surely, 2^{1200110020221} is an apocalyptic number.

It is an amenable number.

1200110020221 is a deficient number, since it is larger than the sum of its proper divisors (667232134083).

1200110020221 is a wasteful number, since it uses less digits than its factorization.

1200110020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26083441 (or 26083434 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200110020221 its reverse (1220200110021), we get a palindrome (2420310130242).

The spelling of 1200110020221 in words is "one trillion, two hundred billion, one hundred ten million, twenty thousand, two hundred twenty-one".