134443322221 has 8 divisors (see below), whose sum is σ = 147516911640. Its totient is φ = 121759989312.

The previous prime is 134443322203. The next prime is 134443322239. The reversal of 134443322221 is 122223344431.

It is an interprime number because it is at equal distance from previous prime (134443322203) and next prime (134443322239).

It can be written as a sum of positive squares in 4 ways, for example, as 3750950025 + 130692372196 = 61245^2 + 361514^2 .

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

It is not a de Polignac number, because 134443322221 - 2¹⁷ = 134443191149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134443322921) 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, 97563406 + ... + 97564783.

It is an arithmetic number, because the mean of its divisors is an integer number (18439613955).

Almost surely, 2^134443322221 is an apocalyptic number.

It is an amenable number.

134443322221 is a deficient number, since it is larger than the sum of its proper divisors (13073589419).

134443322221 is a wasteful number, since it uses less digits than its factorization.

134443322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195128255.

The product of its digits is 27648, while the sum is 31.

Adding to 134443322221 its reverse (122223344431), we get a palindrome (256666666652).

The spelling of 134443322221 in words is "one hundred thirty-four billion, four hundred forty-three million, three hundred twenty-two thousand, two hundred twenty-one".