1221202130313 has 16 divisors (see below), whose sum is σ = 1776444841152. Its totient is φ = 740059656000.

The previous prime is 1221202130261. The next prime is 1221202130341. The reversal of 1221202130313 is 3130312021221.

It is not a de Polignac number, because 1221202130313 - 2¹² = 1221202126217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1221202130313.

It is not an unprimeable number, because it can be changed into a prime (1221202130363) 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, 1175178 + ... + 1955363.

It is an arithmetic number, because the mean of its divisors is an integer number (111027802572).

Almost surely, 2^{1221202130313} is an apocalyptic number.

It is an amenable number.

1221202130313 is a deficient number, since it is larger than the sum of its proper divisors (555242710839).

1221202130313 is a wasteful number, since it uses less digits than its factorization.

1221202130313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142376.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1221202130313 its reverse (3130312021221), we get a palindrome (4351514151534).

The spelling of 1221202130313 in words is "one trillion, two hundred twenty-one billion, two hundred two million, one hundred thirty thousand, three hundred thirteen".