1021222712 has 8 divisors (see below), whose sum is σ = 1914792600. Its totient is φ = 510611352.

The previous prime is 1021222703. The next prime is 1021222729. The reversal of 1021222712 is 2172221201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 63826412 + ... + 63826427.

It is an arithmetic number, because the mean of its divisors is an integer number (239349075).

Almost surely, 2^1021222712 is an apocalyptic number.

It is an amenable number.

1021222712 is a deficient number, since it is larger than the sum of its proper divisors (893569888).

1021222712 is a wasteful number, since it uses less digits than its factorization.

1021222712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127652845 (or 127652841 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1021222712 is about 31956.5754110167. The cubic root of 1021222712 is about 1007.0247743274.

Adding to 1021222712 its reverse (2172221201), we get a palindrome (3193443913).

The spelling of 1021222712 in words is "one billion, twenty-one million, two hundred twenty-two thousand, seven hundred twelve".