1021022012 has 6 divisors (see below), whose sum is σ = 1786788528. Its totient is φ = 510511004.

The previous prime is 1021021999. The next prime is 1021022021. The reversal of 1021022012 is 2102201201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021021984 and 1021022002.

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, 127627748 + ... + 127627755.

It is an arithmetic number, because the mean of its divisors is an integer number (297798088).

Almost surely, 2^1021022012 is an apocalyptic number.

It is an amenable number.

1021022012 is a deficient number, since it is larger than the sum of its proper divisors (765766516).

1021022012 is a wasteful number, since it uses less digits than its factorization.

1021022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255255507 (or 255255505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1021022012 is about 31953.4350579089. The cubic root of 1021022012 is about 1006.9588001080.

Adding to 1021022012 its reverse (2102201201), we get a palindrome (3123223213).

The spelling of 1021022012 in words is "one billion, twenty-one million, twenty-two thousand, twelve".