222251215 has 8 divisors (see below), whose sum is σ = 275898240. Its totient is φ = 171669792.

The previous prime is 222251177. The next prime is 222251221. The reversal of 222251215 is 512152222.

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

It is a de Polignac number, because none of the positive numbers 2^k-222251215 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 766239 + ... + 766528.

It is an arithmetic number, because the mean of its divisors is an integer number (34487280).

Almost surely, 2^222251215 is an apocalyptic number.

222251215 is a deficient number, since it is larger than the sum of its proper divisors (53647025).

222251215 is a wasteful number, since it uses less digits than its factorization.

222251215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532801.

The product of its digits is 800, while the sum is 22.

The square root of 222251215 is about 14908.0922656120. The cubic root of 222251215 is about 605.7332048187.

The spelling of 222251215 in words is "two hundred twenty-two million, two hundred fifty-one thousand, two hundred fifteen".