1021433212 has 6 divisors (see below), whose sum is σ = 1787508128. Its totient is φ = 510716604.

The previous prime is 1021433209. The next prime is 1021433213. The reversal of 1021433212 is 2123341201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021433212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021433213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127679148 + ... + 127679155.

Almost surely, 2^1021433212 is an apocalyptic number.

It is an amenable number.

1021433212 is a deficient number, since it is larger than the sum of its proper divisors (766074916).

1021433212 is a wasteful number, since it uses less digits than its factorization.

1021433212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255358307 (or 255358305 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1021433212 is about 31959.8687731974. The cubic root of 1021433212 is about 1007.0939607218.

Adding to 1021433212 its reverse (2123341201), we get a palindrome (3144774413).

The spelling of 1021433212 in words is "one billion, twenty-one million, four hundred thirty-three thousand, two hundred twelve".