112502205000021 has 16 divisors (see below), whose sum is σ = 150725842295040. Its totient is φ = 74640630966720.

The previous prime is 112502205000013. The next prime is 112502205000067. The reversal of 112502205000021 is 120000502205211.

It is not a de Polignac number, because 112502205000021 - 2³ = 112502205000013 is a prime.

It is a super-2 number, since 2×112502205000021² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112502205000001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75778510 + ... + 77248863.

It is an arithmetic number, because the mean of its divisors is an integer number (9420365143440).

Almost surely, 2^{112502205000021} is an apocalyptic number.

It is an amenable number.

112502205000021 is a deficient number, since it is larger than the sum of its proper divisors (38223637295019).

112502205000021 is a wasteful number, since it uses less digits than its factorization.

112502205000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153028556.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 112502205000021 its reverse (120000502205211), we get a palindrome (232502707205232).

The spelling of 112502205000021 in words is "one hundred twelve trillion, five hundred two billion, two hundred five million, twenty-one", and thus it is an aban number.