2220212 has 6 divisors (see below), whose sum is σ = 3885378. Its totient is φ = 1110104.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220212 is 2120222.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 17956 = 1484^2 + 134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2220193 and 2220202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277523 + ... + 277530.

It is an arithmetic number, because the mean of its divisors is an integer number (647563).

2^2220212 is an apocalyptic number.

It is an amenable number.

2220212 is a deficient number, since it is larger than the sum of its proper divisors (1665166).

2220212 is a wasteful number, since it uses less digits than its factorization.

2220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555057 (or 555055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2220212 is about 1490.0375834186. The cubic root of 2220212 is about 130.4562273984.

Adding to 2220212 its reverse (2120222), we get a palindrome (4340434).

The spelling of 2220212 in words is "two million, two hundred twenty thousand, two hundred twelve".