70213312230221 has 4 divisors (see below), whose sum is σ = 70937160810012. Its totient is φ = 69489463650432.

The previous prime is 70213312230073. The next prime is 70213312230239. The reversal of 70213312230221 is 12203221331207.

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 43590550154596 + 26622762075625 = 6602314^2 + 5159725^2 .

It is a cyclic number.

It is not a de Polignac number, because 70213312230221 - 2³⁴ = 70196132361037 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 (70213312730221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361924289750 + ... + 361924289943.

It is an arithmetic number, because the mean of its divisors is an integer number (17734290202503).

Almost surely, 2^{70213312230221} is an apocalyptic number.

It is an amenable number.

70213312230221 is a deficient number, since it is larger than the sum of its proper divisors (723848579791).

70213312230221 is an equidigital number, since it uses as much as digits as its factorization.

70213312230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723848579790.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 70213312230221 its reverse (12203221331207), we get a palindrome (82416533561428).

The spelling of 70213312230221 in words is "seventy trillion, two hundred thirteen billion, three hundred twelve million, two hundred thirty thousand, two hundred twenty-one".