212100220100102 has 4 divisors (see below), whose sum is σ = 318150330150156. Its totient is φ = 106050110050050.

The previous prime is 212100220100099. The next prime is 212100220100113. The reversal of 212100220100102 is 201001022001212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53025055025024 + ... + 53025055025027.

It is an arithmetic number, because the mean of its divisors is an integer number (79537582537539).

Almost surely, 2^{212100220100102} is an apocalyptic number.

212100220100102 is a deficient number, since it is larger than the sum of its proper divisors (106050110050054).

212100220100102 is a wasteful number, since it uses less digits than its factorization.

212100220100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106050110050053.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100220100102 its reverse (201001022001212), we get a palindrome (413101242101314).

The spelling of 212100220100102 in words is "two hundred twelve trillion, one hundred billion, two hundred twenty million, one hundred thousand, one hundred two".