167211221222 has 8 divisors (see below), whose sum is σ = 258907697472. Its totient is φ = 80908655400.

The previous prime is 167211221201. The next prime is 167211221251. The reversal of 167211221222 is 222122112761.

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, 1348477529 + ... + 1348477652.

It is an arithmetic number, because the mean of its divisors is an integer number (32363462184).

Almost surely, 2^167211221222 is an apocalyptic number.

167211221222 is a deficient number, since it is larger than the sum of its proper divisors (91696476250).

167211221222 is a wasteful number, since it uses less digits than its factorization.

167211221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696955214.

The product of its digits is 2688, while the sum is 29.

Adding to 167211221222 its reverse (222122112761), we get a palindrome (389333333983).

The spelling of 167211221222 in words is "one hundred sixty-seven billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".