222012206 has 8 divisors (see below), whose sum is σ = 358635144. Its totient is φ = 102467160.

The previous prime is 222012187. The next prime is 222012209. The reversal of 222012206 is 602210222.

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

It is a super-2 number, since 2×222012206² = 98578839225972872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4269440 + ... + 4269491.

It is an arithmetic number, because the mean of its divisors is an integer number (44829393).

Almost surely, 2^222012206 is an apocalyptic number.

222012206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222012206 is a deficient number, since it is larger than the sum of its proper divisors (136622938).

222012206 is a wasteful number, since it uses less digits than its factorization.

222012206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538946.

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

The square root of 222012206 is about 14900.0740266617. The cubic root of 222012206 is about 605.5159917341.

Adding to 222012206 its reverse (602210222), we get a palindrome (824222428).

The spelling of 222012206 in words is "two hundred twenty-two million, twelve thousand, two hundred six".