1021202212 has 6 divisors (see below), whose sum is σ = 1787103878. Its totient is φ = 510601104.

The previous prime is 1021202207. The next prime is 1021202249. The reversal of 1021202212 is 2122021201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 522305316 + 498896896 = 22854^2 + 22336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021202192 and 1021202201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127650273 + ... + 127650280.

Almost surely, 2^1021202212 is an apocalyptic number.

It is an amenable number.

1021202212 is a deficient number, since it is larger than the sum of its proper divisors (765901666).

1021202212 is a wasteful number, since it uses less digits than its factorization.

1021202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255300557 (or 255300555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1021202212 is about 31956.2546616464. The cubic root of 1021202212 is about 1007.0180359520.

Adding to 1021202212 its reverse (2122021201), we get a palindrome (3143223413).

The spelling of 1021202212 in words is "one billion, twenty-one million, two hundred two thousand, two hundred twelve".