220012 has 12 divisors (see below), whose sum is σ = 414736. Its totient is φ = 101520.

The previous prime is 220009. The next prime is 220013. The reversal of 220012 is 210022.

It is a happy number.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 219977 and 220004.

It is not an unprimeable number, because it can be changed into a prime (220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064 + ... + 2167.

2²²⁰⁰¹² is an apocalyptic number.

It is an amenable number.

220012 is a deficient number, since it is larger than the sum of its proper divisors (194724).

220012 is a wasteful number, since it uses less digits than its factorization.

220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220012 is about 469.0543678509. The cubic root of 220012 is about 60.3692049500.

Adding to 220012 its reverse (210022), we get a palindrome (430034).

The spelling of 220012 in words is "two hundred twenty thousand, twelve", and thus it is an iban number.