334340021021 has 4 divisors (see below), whose sum is σ = 334462537500. Its totient is φ = 334217504544.

The previous prime is 334340021017. The next prime is 334340021027. The reversal of 334340021021 is 120120043433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120120043433 = 13 ⋅9240003341.

It can be written as a sum of positive squares in 2 ways, for example, as 329441560900 + 4898460121 = 573970^2 + 69989^2 .

It is a cyclic number.

It is not a de Polignac number, because 334340021021 - 2² = 334340021017 is a prime.

It is a super-2 number, since 2×334340021021² (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 (334340021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61254146 + ... + 61259603.

It is an arithmetic number, because the mean of its divisors is an integer number (83615634375).

Almost surely, 2^334340021021 is an apocalyptic number.

It is an amenable number.

334340021021 is a deficient number, since it is larger than the sum of its proper divisors (122516479).

334340021021 is a wasteful number, since it uses less digits than its factorization.

334340021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122516478.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 334340021021 its reverse (120120043433), we get a palindrome (454460064454).

The spelling of 334340021021 in words is "three hundred thirty-four billion, three hundred forty million, twenty-one thousand, twenty-one".