222116815 has 8 divisors (see below), whose sum is σ = 282219120. Its totient is φ = 167240832.

The previous prime is 222116813. The next prime is 222116827. The reversal of 222116815 is 518611222.

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

It is not a de Polignac number, because 222116815 - 2¹ = 222116813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222116813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306485 + ... + 1306654.

It is an arithmetic number, because the mean of its divisors is an integer number (35277390).

Almost surely, 2^222116815 is an apocalyptic number.

222116815 is a deficient number, since it is larger than the sum of its proper divisors (60102305).

222116815 is a wasteful number, since it uses less digits than its factorization.

222116815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613161.

The product of its digits is 1920, while the sum is 28.

The square root of 222116815 is about 14903.5839649394. The cubic root of 222116815 is about 605.6110803142.

The spelling of 222116815 in words is "two hundred twenty-two million, one hundred sixteen thousand, eight hundred fifteen".