222122000 has 160 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 81254400.

The previous prime is 222121981. The next prime is 222122023. The reversal of 222122000 is 221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1597931 + ... + 1598069.

It is an arithmetic number, because the mean of its divisors is an integer number (3656016).

Almost surely, 2^222122000 is an apocalyptic number.

222122000 is a gapful number since it is divisible by the number (20) 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 222122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

222122000 is an abundant number, since it is smaller than the sum of its proper divisors (362840560).

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

222122000 is a wasteful number, since it uses less digits than its factorization.

222122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222122000 is about 14903.7579153715. The cubic root of 222122000 is about 605.6157926530.

Adding to 222122000 its reverse (221222), we get a palindrome (222343222).

The spelling of 222122000 in words is "two hundred twenty-two million, one hundred twenty-two thousand".