222132042 has 72 divisors (see below), whose sum is σ = 536128320. Its totient is φ = 66409200.

The previous prime is 222132041. The next prime is 222132073. The reversal of 222132042 is 240231222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222132041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 171417 + ... + 172707.

Almost surely, 2^222132042 is an apocalyptic number.

222132042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222132042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268064160).

222132042 is an abundant number, since it is smaller than the sum of its proper divisors (313996278).

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

222132042 is a wasteful number, since it uses less digits than its factorization.

222132042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222132042 is about 14904.0948064617. The cubic root of 222132042 is about 605.6249190222.

Adding to 222132042 its reverse (240231222), we get a palindrome (462363264).

The spelling of 222132042 in words is "two hundred twenty-two million, one hundred thirty-two thousand, forty-two".