211121021210102 has 16 divisors (see below), whose sum is σ = 317058166700352. Its totient is φ = 105435019706880.

The previous prime is 211121021210101. The next prime is 211121021210137. The reversal of 211121021210102 is 201012120121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121021210101) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5702123 + ... + 21325014.

It is an arithmetic number, because the mean of its divisors is an integer number (19816135418772).

Almost surely, 2^{211121021210102} is an apocalyptic number.

211121021210102 is a deficient number, since it is larger than the sum of its proper divisors (105937145490250).

211121021210102 is a wasteful number, since it uses less digits than its factorization.

211121021210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27031783.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211121021210102 its reverse (201012120121112), we get a palindrome (412133141331214).

The spelling of 211121021210102 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, two hundred ten thousand, one hundred two".