211021221211102 has 16 divisors (see below), whose sum is σ = 316580947775280. Its totient is φ = 105494239492992.

The previous prime is 211021221211033. The next prime is 211021221211111. The reversal of 211021221211102 is 201112122120112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211021221211102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532451088 + ... + 532847260.

It is an arithmetic number, because the mean of its divisors is an integer number (19786309235955).

Almost surely, 2^{211021221211102} is an apocalyptic number.

211021221211102 is a deficient number, since it is larger than the sum of its proper divisors (105559726564178).

211021221211102 is a wasteful number, since it uses less digits than its factorization.

211021221211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436827.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211021221211102 its reverse (201112122120112), we get a palindrome (412133343331214).

The spelling of 211021221211102 in words is "two hundred eleven trillion, twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, one hundred two".