220142212 has 12 divisors (see below), whose sum is σ = 389578140. Its totient is φ = 108834176.

The previous prime is 220142203. The next prime is 220142287. The reversal of 220142212 is 212241022.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 77721856 = 11934^2 + 8816^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308833 + ... + 309544.

It is an arithmetic number, because the mean of its divisors is an integer number (32464845).

Almost surely, 2^220142212 is an apocalyptic number.

It is an amenable number.

220142212 is a deficient number, since it is larger than the sum of its proper divisors (169435928).

220142212 is a wasteful number, since it uses less digits than its factorization.

220142212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618470 (or 618468 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 220142212 is about 14837.1901652570. The cubic root of 220142212 is about 603.8111224692.

Adding to 220142212 its reverse (212241022), we get a palindrome (432383234).

The spelling of 220142212 in words is "two hundred twenty million, one hundred forty-two thousand, two hundred twelve".