1220250212 has 6 divisors (see below), whose sum is σ = 2135437878. Its totient is φ = 610125104.

The previous prime is 1220250209. The next prime is 1220250247. The reversal of 1220250212 is 2120520221.

It can be written as a sum of positive squares in only one way, i.e., 754381156 + 465869056 = 27466^2 + 21584^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152531273 + ... + 152531280.

It is an arithmetic number, because the mean of its divisors is an integer number (355906313).

Almost surely, 2^1220250212 is an apocalyptic number.

It is an amenable number.

1220250212 is a deficient number, since it is larger than the sum of its proper divisors (915187666).

1220250212 is a wasteful number, since it uses less digits than its factorization.

1220250212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305062557 (or 305062555 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1220250212 is about 34932.0799838773. The cubic root of 1220250212 is about 1068.6027740519.

Adding to 1220250212 its reverse (2120520221), we get a palindrome (3340770433).

The spelling of 1220250212 in words is "one billion, two hundred twenty million, two hundred fifty thousand, two hundred twelve".