222671999 has 8 divisors (see below), whose sum is σ = 244525440. Its totient is φ = 201087000.

The previous prime is 222671989. The next prime is 222672011. The reversal of 222671999 is 999176222.

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

It is a cyclic number.

It is not a de Polignac number, because 222671999 - 2⁴ = 222671983 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 (222671909) 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, 65369 + ... + 68690.

It is an arithmetic number, because the mean of its divisors is an integer number (30565680).

Almost surely, 2^222671999 is an apocalyptic number.

222671999 is a deficient number, since it is larger than the sum of its proper divisors (21853441).

222671999 is a wasteful number, since it uses less digits than its factorization.

222671999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134221.

The product of its digits is 244944, while the sum is 47.

The square root of 222671999 is about 14922.1981959764. The cubic root of 222671999 is about 606.1152382080.

The spelling of 222671999 in words is "two hundred twenty-two million, six hundred seventy-one thousand, nine hundred ninety-nine".