1220313130321 has 32 divisors (see below), whose sum is σ = 1374135840000. Its totient is φ = 1076862412800.

The previous prime is 1220313130319. The next prime is 1220313130349. The reversal of 1220313130321 is 1230313130221.

It is a cyclic number.

It is not a de Polignac number, because 1220313130321 - 2¹ = 1220313130319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220313130292 and 1220313130301.

It is not an unprimeable number, because it can be changed into a prime (1220313130721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97830141 + ... + 97842613.

It is an arithmetic number, because the mean of its divisors is an integer number (42941745000).

Almost surely, 2^{1220313130321} is an apocalyptic number.

It is an amenable number.

1220313130321 is a deficient number, since it is larger than the sum of its proper divisors (153822709679).

1220313130321 is a wasteful number, since it uses less digits than its factorization.

1220313130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15609.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1220313130321 its reverse (1230313130221), we get a palindrome (2450626260542).

The spelling of 1220313130321 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, one hundred thirty thousand, three hundred twenty-one".