1203221212 has 12 divisors (see below), whose sum is σ = 2108611960. Its totient is φ = 600760656.

The previous prime is 1203221209. The next prime is 1203221213. The reversal of 1203221212 is 2121223021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203221213) 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 3 ways as a sum of consecutive naturals, for example, 209298 + ... + 214969.

Almost surely, 2^1203221212 is an apocalyptic number.

It is an amenable number.

1203221212 is a deficient number, since it is larger than the sum of its proper divisors (905390748).

1203221212 is a wasteful number, since it uses less digits than its factorization.

1203221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424980 (or 424978 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1203221212 is about 34687.4791819757. The cubic root of 1203221212 is about 1063.6085664646.

Adding to 1203221212 its reverse (2121223021), we get a palindrome (3324444233).

The spelling of 1203221212 in words is "one billion, two hundred three million, two hundred twenty-one thousand, two hundred twelve".