10521012006 has 48 divisors (see below), whose sum is σ = 24017001840. Its totient is φ = 3319418880.

The previous prime is 10521011999. The next prime is 10521012017. The reversal of 10521012006 is 60021012501.

It is a super-2 number, since 2×10521012006² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 10521012006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380986 + ... + 407666.

It is an arithmetic number, because the mean of its divisors is an integer number (500354205).

Almost surely, 2^10521012006 is an apocalyptic number.

10521012006 is an abundant number, since it is smaller than the sum of its proper divisors (13495989834).

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

10521012006 is a wasteful number, since it uses less digits than its factorization.

10521012006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27861 (or 27858 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10521012006 its reverse (60021012501), we get a palindrome (70542024507).

The spelling of 10521012006 in words is "ten billion, five hundred twenty-one million, twelve thousand, six".