1222025212 has 24 divisors (see below), whose sum is σ = 2266593840. Its totient is φ = 574498560.

The previous prime is 1222025209. The next prime is 1222025219. The reversal of 1222025212 is 2125202221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222025212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222025219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64287 + ... + 81097.

It is an arithmetic number, because the mean of its divisors is an integer number (94441410).

Almost surely, 2^1222025212 is an apocalyptic number.

It is an amenable number.

1222025212 is a deficient number, since it is larger than the sum of its proper divisors (1044568628).

1222025212 is a wasteful number, since it uses less digits than its factorization.

1222025212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17901 (or 17899 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1222025212 is about 34957.4771973036. The cubic root of 1222025212 is about 1069.1206599071.

Adding to 1222025212 its reverse (2125202221), we get a palindrome (3347227433).

The spelling of 1222025212 in words is "one billion, two hundred twenty-two million, twenty-five thousand, two hundred twelve".