168222000 has 240 divisors, whose sum is σ = 577650528. Its totient is φ = 42099200.

The previous prime is 168221983. The next prime is 168222007. The reversal of 168222000 is 222861.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (168222007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3173974 + ... + 3174026.

Almost surely, 2^168222000 is an apocalyptic number.

168222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288825264).

168222000 is an abundant number, since it is smaller than the sum of its proper divisors (409428528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168222000 is a wasteful number, since it uses less digits than its factorization.

168222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 168222000 is about 12970.0424054819. The cubic root of 168222000 is about 552.0277763801.

Adding to 168222000 its reverse (222861), we get a palindrome (168444861).

The spelling of 168222000 in words is "one hundred sixty-eight million, two hundred twenty-two thousand".