212100200000102 has 16 divisors (see below), whose sum is σ = 335041872169200. Its totient is φ = 100424469928320.

The previous prime is 212100200000053. The next prime is 212100200000113. The reversal of 212100200000102 is 201000002001212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223408327 + ... + 1223581682.

It is an arithmetic number, because the mean of its divisors is an integer number (20940117010575).

Almost surely, 2^{212100200000102} is an apocalyptic number.

212100200000102 is a deficient number, since it is larger than the sum of its proper divisors (122941672169098).

212100200000102 is a wasteful number, since it uses less digits than its factorization.

212100200000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446992311.

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

Adding to 212100200000102 its reverse (201000002001212), we get a palindrome (413100202001314).

The spelling of 212100200000102 in words is "two hundred twelve trillion, one hundred billion, two hundred million, one hundred two", and thus it is an aban number.