6615217222 has 8 divisors (see below), whose sum is σ = 10058755176. Its totient is φ = 3262298832.

The previous prime is 6615217177. The next prime is 6615217237. The reversal of 6615217222 is 2227125166.

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

It is a super-2 number, since 2×6615217222² = 87522197788490794568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22654708 + ... + 22654999.

It is an arithmetic number, because the mean of its divisors is an integer number (1257344397).

Almost surely, 2^6615217222 is an apocalyptic number.

6615217222 is a deficient number, since it is larger than the sum of its proper divisors (3443537954).

6615217222 is a wasteful number, since it uses less digits than its factorization.

6615217222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45309782.

The product of its digits is 20160, while the sum is 34.

The square root of 6615217222 is about 81333.9856517557. The cubic root of 6615217222 is about 1877.2179711513.

The spelling of 6615217222 in words is "six billion, six hundred fifteen million, two hundred seventeen thousand, two hundred twenty-two".