222006444 has 36 divisors (see below), whose sum is σ = 569392152. Its totient is φ = 67274240.

The previous prime is 222006413. The next prime is 222006457. The reversal of 222006444 is 444600222.

It is a super-2 number, since 2×222006444² = 98573722355050272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74997 + ... + 77900.

Almost surely, 2^222006444 is an apocalyptic number.

It is an amenable number.

222006444 is an abundant number, since it is smaller than the sum of its proper divisors (347385708).

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

222006444 is a wasteful number, since it uses less digits than its factorization.

222006444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152926 (or 152913 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 222006444 is about 14899.8806706631. The cubic root of 222006444 is about 605.5107532634.

Adding to 222006444 its reverse (444600222), we get a palindrome (666606666).

The spelling of 222006444 in words is "two hundred twenty-two million, six thousand, four hundred forty-four".