222212026 has 8 divisors (see below), whose sum is σ = 333390420. Its totient is φ = 111081888.

The previous prime is 222212009. The next prime is 222212063. The reversal of 222212026 is 620212222.

It can be written as a sum of positive squares in 2 ways, for example, as 222039801 + 172225 = 14901^2 + 415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 222211994 and 222212012.

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 3 ways as a sum of consecutive naturals, for example, 3430 + ... + 21358.

Almost surely, 2^222212026 is an apocalyptic number.

222212026 is a deficient number, since it is larger than the sum of its proper divisors (111178394).

222212026 is a wasteful number, since it uses less digits than its factorization.

222212026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 222212026 is about 14906.7778543856. Note that the first 3 decimals coincide. The cubic root of 222212026 is about 605.6976002530.

Adding to 222212026 its reverse (620212222), we get a palindrome (842424248).

The spelling of 222212026 in words is "two hundred twenty-two million, two hundred twelve thousand, twenty-six".