1021212412 has 48 divisors (see below), whose sum is σ = 1990243584. Its totient is φ = 458396400.

The previous prime is 1021212377. The next prime is 1021212449. The reversal of 1021212412 is 2142121201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440737 + ... + 443047.

It is an arithmetic number, because the mean of its divisors is an integer number (41463408).

Almost surely, 2^1021212412 is an apocalyptic number.

It is an amenable number.

1021212412 is a deficient number, since it is larger than the sum of its proper divisors (969031172).

1021212412 is a wasteful number, since it uses less digits than its factorization.

1021212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1021212412 is about 31956.4142544185. The cubic root of 1021212412 is about 1007.0213887159.

Adding to 1021212412 its reverse (2142121201), we get a palindrome (3163333613).

The spelling of 1021212412 in words is "one billion, twenty-one million, two hundred twelve thousand, four hundred twelve".