846970241221 has 4 divisors (see below), whose sum is σ = 912121798252. Its totient is φ = 781818684192.

The previous prime is 846970241219. The next prime is 846970241251. The reversal of 846970241221 is 122142079648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 487917617121 + 359052624100 = 698511^2 + 599210^2 .

It is not a de Polignac number, because 846970241221 - 2¹ = 846970241219 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 (846970241251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32575778496 + ... + 32575778521.

It is an arithmetic number, because the mean of its divisors is an integer number (228030449563).

Almost surely, 2^846970241221 is an apocalyptic number.

It is an amenable number.

846970241221 is a deficient number, since it is larger than the sum of its proper divisors (65151557031).

846970241221 is a wasteful number, since it uses less digits than its factorization.

846970241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65151557030.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 846970241221 in words is "eight hundred forty-six billion, nine hundred seventy million, two hundred forty-one thousand, two hundred twenty-one".