70310232221 has 4 divisors (see below), whose sum is σ = 74446128252. Its totient is φ = 66174336192.

The previous prime is 70310232193. The next prime is 70310232247. The reversal of 70310232221 is 12223201307.

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 60757320100 + 9552912121 = 246490^2 + 97739^2 .

It is a cyclic number.

It is not a de Polignac number, because 70310232221 - 2¹⁴ = 70310215837 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 (70310232271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067947990 + ... + 2067948023.

It is an arithmetic number, because the mean of its divisors is an integer number (18611532063).

Almost surely, 2^70310232221 is an apocalyptic number.

It is an amenable number.

70310232221 is a deficient number, since it is larger than the sum of its proper divisors (4135896031).

70310232221 is a wasteful number, since it uses less digits than its factorization.

70310232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135896030.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 70310232221 its reverse (12223201307), we get a palindrome (82533433528).

The spelling of 70310232221 in words is "seventy billion, three hundred ten million, two hundred thirty-two thousand, two hundred twenty-one".