222422022 has 48 divisors (see below), whose sum is σ = 496908672. Its totient is φ = 71850240.

The previous prime is 222422017. The next prime is 222422023. The reversal of 222422022 is 220224222.

It is a happy number.

222422022 is a `hidden beast` number, since 222 + 422 + 0 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 222421986 and 222422004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222422023) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 223947 + ... + 224937.

It is an arithmetic number, because the mean of its divisors is an integer number (10352264).

Almost surely, 2^222422022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222422022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248454336).

222422022 is an abundant number, since it is smaller than the sum of its proper divisors (274486650).

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

222422022 is a wasteful number, since it uses less digits than its factorization.

222422022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222422022 is about 14913.8198326250. The cubic root of 222422022 is about 605.8883400453. Note that the first 3 decimals are identical.

Adding to 222422022 its reverse (220224222), we get a palindrome (442646244).

The spelling of 222422022 in words is "two hundred twenty-two million, four hundred twenty-two thousand, twenty-two".