334491078221 has 8 divisors (see below), whose sum is σ = 342931929144. Its totient is φ = 326063681280.

The previous prime is 334491078217. The next prime is 334491078223. The reversal of 334491078221 is 122870194433.

It can be written as a sum of positive squares in 4 ways, for example, as 17758494121 + 316732584100 = 133261^2 + 562790^2 .

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 334491078221 - 2² = 334491078217 is a prime.

It is a super-2 number, since 2×334491078221² (a number of 24 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 (334491078223) 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, 3313136 + ... + 3412601.

It is an arithmetic number, because the mean of its divisors is an integer number (42866491143).

Almost surely, 2^334491078221 is an apocalyptic number.

It is an amenable number.

334491078221 is a deficient number, since it is larger than the sum of its proper divisors (8440850923).

334491078221 is a wasteful number, since it uses less digits than its factorization.

334491078221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6726991.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 334491078221 in words is "three hundred thirty-four billion, four hundred ninety-one million, seventy-eight thousand, two hundred twenty-one".