10001021012 has 12 divisors (see below), whose sum is σ = 17908805376. Its totient is φ = 4884219480.

The previous prime is 10001020999. The next prime is 10001021039. The reversal of 10001021012 is 21012010001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29072564 + ... + 29072907.

It is an arithmetic number, because the mean of its divisors is an integer number (1492400448).

Almost surely, 2^10001021012 is an apocalyptic number.

It is an amenable number.

10001021012 is a deficient number, since it is larger than the sum of its proper divisors (7907784364).

10001021012 is a wasteful number, since it uses less digits than its factorization.

10001021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58145518 (or 58145516 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10001021012 its reverse (21012010001), we get a palindrome (31013031013).

The spelling of 10001021012 in words is "ten billion, one million, twenty-one thousand, twelve".