1220330212 has 6 divisors (see below), whose sum is σ = 2135577878. Its totient is φ = 610165104.

The previous prime is 1220330201. The next prime is 1220330213. The reversal of 1220330212 is 2120330221.

It can be written as a sum of positive squares in only one way, i.e., 953203876 + 267126336 = 30874^2 + 16344^2 .

It is not an unprimeable number, because it can be changed into a prime (1220330213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152541273 + ... + 152541280.

Almost surely, 2^1220330212 is an apocalyptic number.

It is an amenable number.

1220330212 is a deficient number, since it is larger than the sum of its proper divisors (915247666).

1220330212 is a wasteful number, since it uses less digits than its factorization.

1220330212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305082557 (or 305082555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220330212 is about 34933.2250443614. The cubic root of 1220330212 is about 1068.6261261899.

Adding to 1220330212 its reverse (2120330221), we get a palindrome (3340660433).

Subtracting 1220330212 from its reverse (2120330221), we obtain a palindrome (900000009).

The spelling of 1220330212 in words is "one billion, two hundred twenty million, three hundred thirty thousand, two hundred twelve".