1021206006 has 12 divisors (see below), whose sum is σ = 2212613052. Its totient is φ = 340401996.

The previous prime is 1021205959. The next prime is 1021206013. The reversal of 1021206006 is 6006021201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 56733667 = 1021206006 / (1 + 0 + 2 + 1 + 2 + 0 + 6 + 0 + 0 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1021206006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28366816 + ... + 28366851.

It is an arithmetic number, because the mean of its divisors is an integer number (184384421).

Almost surely, 2^1021206006 is an apocalyptic number.

1021206006 is an abundant number, since it is smaller than the sum of its proper divisors (1191407046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021206006 is a wasteful number, since it uses less digits than its factorization.

1021206006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56733675 (or 56733672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1021206006 is about 31956.3140239922. The cubic root of 1021206006 is about 1007.0192830513.

Adding to 1021206006 its reverse (6006021201), we get a palindrome (7027227207).

The spelling of 1021206006 in words is "one billion, twenty-one million, two hundred six thousand, six".