340334320221 has 16 divisors (see below), whose sum is σ = 576227420800. Its totient is φ = 194476754304.

The previous prime is 340334320199. The next prime is 340334320237. The reversal of 340334320221 is 122023433043.

340334320221 is a `hidden beast` number, since 3 + 4 + 0 + 3 + 3 + 432 + 0 + 221 = 666.

It is not a de Polignac number, because 340334320221 - 2⁵ = 340334320189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340334320021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900355156 + ... + 900355533.

It is an arithmetic number, because the mean of its divisors is an integer number (36014213800).

Almost surely, 2^340334320221 is an apocalyptic number.

It is an amenable number.

340334320221 is a deficient number, since it is larger than the sum of its proper divisors (235893100579).

340334320221 is a wasteful number, since it uses less digits than its factorization.

340334320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800710705 (or 1800710699 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 340334320221 its reverse (122023433043), we get a palindrome (462357753264).

The spelling of 340334320221 in words is "three hundred forty billion, three hundred thirty-four million, three hundred twenty thousand, two hundred twenty-one".