220022206 has 4 divisors (see below), whose sum is σ = 330033312. Its totient is φ = 110011102.

The previous prime is 220022141. The next prime is 220022207. The reversal of 220022206 is 602220022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602220022 = 2 ⋅301110011.

It is a super-2 number, since 2×220022206² = 96819542266212872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005550 + ... + 55005553.

It is an arithmetic number, because the mean of its divisors is an integer number (82508328).

Almost surely, 2^220022206 is an apocalyptic number.

220022206 is a deficient number, since it is larger than the sum of its proper divisors (110011106).

220022206 is a wasteful number, since it uses less digits than its factorization.

220022206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110011105.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220022206 is about 14833.1455194102. The cubic root of 220022206 is about 603.7013841206.

Adding to 220022206 its reverse (602220022), we get a palindrome (822242228).

The spelling of 220022206 in words is "two hundred twenty million, twenty-two thousand, two hundred six".