21202010000012 has 12 divisors (see below), whose sum is σ = 38300405161536. Its totient is φ = 10259037096720.

The previous prime is 21202009999993. The next prime is 21202010000027. The reversal of 21202010000012 is 21000001020212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21202009999948 and 21202010000002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85491975683 + ... + 85491975930.

It is an arithmetic number, because the mean of its divisors is an integer number (3191700430128).

Almost surely, 2^{21202010000012} is an apocalyptic number.

It is an amenable number.

21202010000012 is a deficient number, since it is larger than the sum of its proper divisors (17098395161524).

21202010000012 is a wasteful number, since it uses less digits than its factorization.

21202010000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170983951648 (or 170983951646 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21202010000012 its reverse (21000001020212), we get a palindrome (42202011020224).

The spelling of 21202010000012 in words is "twenty-one trillion, two hundred two billion, ten million, twelve", and thus it is an aban number.