13220221032241 has 4 divisors (see below), whose sum is σ = 13229332143984. Its totient is φ = 13211109920500.

The previous prime is 13220221032233. The next prime is 13220221032283. The reversal of 13220221032241 is 14223012202231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13220221032241 - 2³ = 13220221032233 is a prime.

It is a super-2 number, since 2×13220221032241² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220221032041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4555553695 + ... + 4555556596.

It is an arithmetic number, because the mean of its divisors is an integer number (3307333035996).

Almost surely, 2^{13220221032241} is an apocalyptic number.

It is an amenable number.

13220221032241 is a deficient number, since it is larger than the sum of its proper divisors (9111111743).

13220221032241 is an equidigital number, since it uses as much as digits as its factorization.

13220221032241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111111742.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13220221032241 its reverse (14223012202231), we get a palindrome (27443233234472).

The spelling of 13220221032241 in words is "thirteen trillion, two hundred twenty billion, two hundred twenty-one million, thirty-two thousand, two hundred forty-one".