667142222 has 8 divisors (see below), whose sum is σ = 1000868400. Its totient is φ = 333519424.

The previous prime is 667142213. The next prime is 667142243. The reversal of 667142222 is 222241766.

667142222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6947 + ... + 37182.

It is an arithmetic number, because the mean of its divisors is an integer number (125108550).

Almost surely, 2^667142222 is an apocalyptic number.

667142222 is a deficient number, since it is larger than the sum of its proper divisors (333726178).

667142222 is a wasteful number, since it uses less digits than its factorization.

667142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51690.

The product of its digits is 16128, while the sum is 32.

The square root of 667142222 is about 25829.0964224458. The cubic root of 667142222 is about 873.7881332897.

Adding to 667142222 its reverse (222241766), we get a palindrome (889383988).

The spelling of 667142222 in words is "six hundred sixty-seven million, one hundred forty-two thousand, two hundred twenty-two".