13022202016820 has 48 divisors (see below), whose sum is σ = 28092748250448. Its totient is φ = 5066832384000.

The previous prime is 13022202016819. The next prime is 13022202016829. The reversal of 13022202016820 is 2861020222031.

It can be written as a sum of positive squares in 8 ways, for example, as 86109381136 + 12936092635684 = 293444^2 + 3596678^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022202016829) 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, 761594 + ... + 5159886.

It is an arithmetic number, because the mean of its divisors is an integer number (585265588551).

Almost surely, 2^{13022202016820} is an apocalyptic number.

13022202016820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13022202016820 is an abundant number, since it is smaller than the sum of its proper divisors (15070546233628).

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

13022202016820 is a wasteful number, since it uses less digits than its factorization.

13022202016820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402340 (or 4402338 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 13022202016820 its reverse (2861020222031), we get a palindrome (15883222238851).

The spelling of 13022202016820 in words is "thirteen trillion, twenty-two billion, two hundred two million, sixteen thousand, eight hundred twenty".