13434220221 has 8 divisors (see below), whose sum is σ = 18396409824. Its totient is φ = 8714088720.

The previous prime is 13434220141. The next prime is 13434220271. The reversal of 13434220221 is 12202243431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13434220221 - 2¹⁵ = 13434187453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13434220191 and 13434220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13434220271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60514395 + ... + 60514616.

It is an arithmetic number, because the mean of its divisors is an integer number (2299551228).

Almost surely, 2^13434220221 is an apocalyptic number.

It is an amenable number.

13434220221 is a deficient number, since it is larger than the sum of its proper divisors (4962189603).

13434220221 is a wasteful number, since it uses less digits than its factorization.

13434220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121029051.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13434220221 its reverse (12202243431), we get a palindrome (25636463652).

The spelling of 13434220221 in words is "thirteen billion, four hundred thirty-four million, two hundred twenty thousand, two hundred twenty-one".