13353555044221 has 4 divisors (see below), whose sum is σ = 15261205764832. Its totient is φ = 11445904323612.

The previous prime is 13353555044209. The next prime is 13353555044231. The reversal of 13353555044221 is 12244055535331.

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 13353555044221 - 2³⁹ = 12803799230333 is a prime.

It is a super-2 number, since 2×13353555044221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13353555044201) 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, 953825360295 + ... + 953825360308.

It is an arithmetic number, because the mean of its divisors is an integer number (3815301441208).

Almost surely, 2^{13353555044221} is an apocalyptic number.

It is an amenable number.

13353555044221 is a deficient number, since it is larger than the sum of its proper divisors (1907650720611).

13353555044221 is an equidigital number, since it uses as much as digits as its factorization.

13353555044221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907650720610.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 13353555044221 in words is "thirteen trillion, three hundred fifty-three billion, five hundred fifty-five million, forty-four thousand, two hundred twenty-one".