222220016 has 40 divisors (see below), whose sum is σ = 438711504. Its totient is φ = 109025280.

The previous prime is 222220013. The next prime is 222220021. The reversal of 222220016 is 610022222.

It is a super-2 number, since 2×222220016² = 98763471022080512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222219976 and 222220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220013) 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 7 ways as a sum of consecutive naturals, for example, 202766 + ... + 203858.

Almost surely, 2^222220016 is an apocalyptic number.

It is an amenable number.

222220016 is a deficient number, since it is larger than the sum of its proper divisors (216491488).

222220016 is a wasteful number, since it uses less digits than its factorization.

222220016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222220016 is about 14907.0458508720. The cubic root of 222220016 is about 605.7048597848.

Adding to 222220016 its reverse (610022222), we get a palindrome (832242238).

The spelling of 222220016 in words is "two hundred twenty-two million, two hundred twenty thousand, sixteen".