1321202311202 has 32 divisors (see below), whose sum is σ = 2034790483824. Its totient is φ = 643162752000.

The previous prime is 1321202311171. The next prime is 1321202311207. The reversal of 1321202311202 is 2021132021231.

It can be written as a sum of positive squares in 8 ways, for example, as 825134240161 + 496068071041 = 908369^2 + 704321^2 .

It is not an unprimeable number, because it can be changed into a prime (1321202311207) 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 15 ways as a sum of consecutive naturals, for example, 52935158 + ... + 52960110.

Almost surely, 2^{1321202311202} is an apocalyptic number.

1321202311202 is a deficient number, since it is larger than the sum of its proper divisors (713588172622).

1321202311202 is a wasteful number, since it uses less digits than its factorization.

1321202311202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29414.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1321202311202 its reverse (2021132021231), we get a palindrome (3342334332433).

The spelling of 1321202311202 in words is "one trillion, three hundred twenty-one billion, two hundred two million, three hundred eleven thousand, two hundred two".