211111122001102 has 4 divisors (see below), whose sum is σ = 316666683001656. Its totient is φ = 105555561000550.

The previous prime is 211111122001069. The next prime is 211111122001189. The reversal of 211111122001102 is 201100221111112.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 52777780500274 + ... + 52777780500277.

It is an arithmetic number, because the mean of its divisors is an integer number (79166670750414).

Almost surely, 2^{211111122001102} is an apocalyptic number.

211111122001102 is a deficient number, since it is larger than the sum of its proper divisors (105555561000554).

211111122001102 is a wasteful number, since it uses less digits than its factorization.

211111122001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105555561000553.

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

Adding to 211111122001102 its reverse (201100221111112), we get a palindrome (412211343112214).

The spelling of 211111122001102 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred twenty-two million, one thousand, one hundred two".