7070722221 has 8 divisors (see below), whose sum is σ = 9461665504. Its totient is φ = 4696796880.

The previous prime is 7070722193. The next prime is 7070722223. The reversal of 7070722221 is 1222270707.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7070722221 - 2¹³ = 7070714029 is a prime.

It is a super-2 number, since 2×7070722221² = 99990225453086345682, which 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 (7070722223) 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 7 ways as a sum of consecutive naturals, for example, 4253515 + ... + 4255176.

It is an arithmetic number, because the mean of its divisors is an integer number (1182708188).

Almost surely, 2^7070722221 is an apocalyptic number.

It is an amenable number.

7070722221 is a deficient number, since it is larger than the sum of its proper divisors (2390943283).

7070722221 is a wasteful number, since it uses less digits than its factorization.

7070722221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508971.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 7070722221 is about 84087.5866046826. The cubic root of 7070722221 is about 1919.3518338926.

Adding to 7070722221 its reverse (1222270707), we get a palindrome (8292992928).

The spelling of 7070722221 in words is "seven billion, seventy million, seven hundred twenty-two thousand, two hundred twenty-one".