13220205532245 has 16 divisors (see below), whose sum is σ = 23502587613120. Its totient is φ = 7050776283792.

The previous prime is 13220205532229. The next prime is 13220205532291. The reversal of 13220205532245 is 54223550202231.

It is a happy number.

13220205532245 is a `hidden beast` number, since 1 + 3 + 2 + 20 + 20 + 553 + 22 + 45 = 666.

It is not a de Polignac number, because 13220205532245 - 2⁴ = 13220205532229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48963724059 + ... + 48963724328.

It is an arithmetic number, because the mean of its divisors is an integer number (1468911725820).

Almost surely, 2^{13220205532245} is an apocalyptic number.

13220205532245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13220205532245 is a deficient number, since it is larger than the sum of its proper divisors (10282382080875).

13220205532245 is an equidigital number, since it uses as much as digits as its factorization.

13220205532245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97927448401 (or 97927448395 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 13220205532245 its reverse (54223550202231), we get a palindrome (67443755734476).

The spelling of 13220205532245 in words is "thirteen trillion, two hundred twenty billion, two hundred five million, five hundred thirty-two thousand, two hundred forty-five".