13220445024242 has 4 divisors (see below), whose sum is σ = 19830667536366. Its totient is φ = 6610222512120.

The previous prime is 13220445024239. The next prime is 13220445024251. The reversal of 13220445024242 is 24242054402231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12094195584241 + 1126249440001 = 3477671^2 + 1061249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305111256059 + ... + 3305111256062.

Almost surely, 2^{13220445024242} is an apocalyptic number.

13220445024242 is a deficient number, since it is larger than the sum of its proper divisors (6610222512124).

13220445024242 is an equidigital number, since it uses as much as digits as its factorization.

13220445024242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610222512123.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 13220445024242 its reverse (24242054402231), we get a palindrome (37462499426473).

The spelling of 13220445024242 in words is "thirteen trillion, two hundred twenty billion, four hundred forty-five million, twenty-four thousand, two hundred forty-two".