340220111000221 has 8 divisors (see below), whose sum is σ = 341195647275000. Its totient is φ = 339244578689280.

The previous prime is 340220111000207. The next prime is 340220111000303. The reversal of 340220111000221 is 122000111022043.

It can be written as a sum of positive squares in 4 ways, for example, as 278163355932900 + 62056755067321 = 16678230^2 + 7877611^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 340220111000221 - 2¹⁹ = 340220110475933 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 (340220111006221) 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, 316442241 + ... + 317515561.

It is an arithmetic number, because the mean of its divisors is an integer number (42649455909375).

Almost surely, 2^{340220111000221} is an apocalyptic number.

It is an amenable number.

340220111000221 is a deficient number, since it is larger than the sum of its proper divisors (975536274779).

340220111000221 is a wasteful number, since it uses less digits than its factorization.

340220111000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981919.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 340220111000221 its reverse (122000111022043), we get a palindrome (462220222022264).

The spelling of 340220111000221 in words is "three hundred forty trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.