222042000 has 160 divisors (see below), whose sum is σ = 747452160. Its totient is φ = 56601600.

The previous prime is 222041993. The next prime is 222042001. The reversal of 222042000 is 240222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (222042001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137196 + ... + 138804.

It is an arithmetic number, because the mean of its divisors is an integer number (4671576).

Almost surely, 2^222042000 is an apocalyptic number.

222042000 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 222042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373726080).

222042000 is an abundant number, since it is smaller than the sum of its proper divisors (525410160).

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

222042000 is a wasteful number, since it uses less digits than its factorization.

222042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222042000 is about 14901.0737868115. The cubic root of 222042000 is about 605.5430772367.

Adding to 222042000 its reverse (240222), we get a palindrome (222282222).

The spelling of 222042000 in words is "two hundred twenty-two million, forty-two thousand".