1200201302221 has 16 divisors (see below), whose sum is σ = 1239544386864. Its totient is φ = 1161226727424.

The previous prime is 1200201302219. The next prime is 1200201302233. The reversal of 1200201302221 is 1222031020021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 70923146596 + 1129278155625 = 266314^2 + 1062675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200201302221 - 2¹ = 1200201302219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200201302195 and 1200201302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200201302281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17654331 + ... + 17722183.

It is an arithmetic number, because the mean of its divisors is an integer number (77471524179).

Almost surely, 2^{1200201302221} is an apocalyptic number.

It is an amenable number.

1200201302221 is a deficient number, since it is larger than the sum of its proper divisors (39343084643).

1200201302221 is a wasteful number, since it uses less digits than its factorization.

1200201302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70560.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1200201302221 its reverse (1222031020021), we get a palindrome (2422232322242).

It can be divided in two parts, 120020 and 1302221, that added together give a palindrome (1422241).

The spelling of 1200201302221 in words is "one trillion, two hundred billion, two hundred one million, three hundred two thousand, two hundred twenty-one".