13102230321220 has 96 divisors (see below), whose sum is σ = 29537152672608. Its totient is φ = 4864231636992.

The previous prime is 13102230321161. The next prime is 13102230321319. The reversal of 13102230321220 is 2212303220131.

It can be written as a sum of positive squares in 16 ways, for example, as 1356516772416 + 11745713548804 = 1164696^2 + 3427202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13102230321191 and 13102230321200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162605182 + ... + 162685738.

It is an arithmetic number, because the mean of its divisors is an integer number (307678673673).

Almost surely, 2^{13102230321220} is an apocalyptic number.

13102230321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13102230321220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14768576336304).

13102230321220 is an abundant number, since it is smaller than the sum of its proper divisors (16434922351388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13102230321220 is a wasteful number, since it uses less digits than its factorization.

13102230321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87209 (or 87207 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13102230321220 its reverse (2212303220131), we get a palindrome (15314533541351).

The spelling of 13102230321220 in words is "thirteen trillion, one hundred two billion, two hundred thirty million, three hundred twenty-one thousand, two hundred twenty".