10001012 has 12 divisors (see below), whose sum is σ = 20002080. Its totient is φ = 4286136.

The previous prime is 10001009. The next prime is 10001053. The reversal of 10001012 is 21010001.

It is a happy number.

10001012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 10000987 and 10001005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178562 + ... + 178617.

It is an arithmetic number, because the mean of its divisors is an integer number (1666840).

Almost surely, 2^10001012 is an apocalyptic number.

It is an amenable number.

10001012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10001012 is a wasteful number, since it uses less digits than its factorization.

10001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357190 (or 357188 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 10001012 is about 3162.4376673699. The cubic root of 10001012 is about 215.4507363844.

Adding to 10001012 its reverse (21010001), we get a palindrome (31011013).

Multiplying 10001012 by its reverse (21010001), we get a palindrome (210121272121012).

The spelling of 10001012 in words is "ten million, one thousand, twelve".