21012102000022 has 32 divisors (see below), whose sum is σ = 36143623109952. Its totient is φ = 8974479780864.

The previous prime is 21012101999989. The next prime is 21012102000059. The reversal of 21012102000022 is 22000020121012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21012101999966 and 21012102000011.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 19892148 + ... + 20921800.

It is an arithmetic number, because the mean of its divisors is an integer number (1129488222186).

Almost surely, 2^{21012102000022} is an apocalyptic number.

21012102000022 is a deficient number, since it is larger than the sum of its proper divisors (15131521109930).

21012102000022 is a wasteful number, since it uses less digits than its factorization.

21012102000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034632.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21012102000022 its reverse (22000020121012), we get a palindrome (43012122121034).

The spelling of 21012102000022 in words is "twenty-one trillion, twelve billion, one hundred two million, twenty-two", and thus it is an aban number.