222212022 has 16 divisors (see below), whose sum is σ = 444667440. Its totient is φ = 74030112.

The previous prime is 222212009. The next prime is 222212063. The reversal of 222212022 is 220212222.

It is a junction number, because it is equal to n+sod(n) for n = 222211992 and 222212010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (27791715).

Almost surely, 2^222212022 is an apocalyptic number.

222212022 is an abundant number, since it is smaller than the sum of its proper divisors (222455418).

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

222212022 is a wasteful number, since it uses less digits than its factorization.

222212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20287.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 222212022 is about 14906.7777202184. Note that the first 4 decimals coincide. The cubic root of 222212022 is about 605.6975966187.

Adding to 222212022 its reverse (220212222), we get a palindrome (442424244).

The spelling of 222212022 in words is "two hundred twenty-two million, two hundred twelve thousand, twenty-two".