211121001102111 has 32 divisors (see below), whose sum is σ = 285154272460800. Its totient is φ = 138923096167680.

The previous prime is 211121001102079. The next prime is 211121001102199. The reversal of 211121001102111 is 111201100121112.

It is not a de Polignac number, because 211121001102111 - 2⁵ = 211121001102079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121001102811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1825001170 + ... + 1825116848.

It is an arithmetic number, because the mean of its divisors is an integer number (8911071014400).

Almost surely, 2^{211121001102111} is an apocalyptic number.

211121001102111 is a deficient number, since it is larger than the sum of its proper divisors (74033271358689).

211121001102111 is a wasteful number, since it uses less digits than its factorization.

211121001102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127639.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211121001102111 its reverse (111201100121112), we get a palindrome (322322101223223).

The spelling of 211121001102111 in words is "two hundred eleven trillion, one hundred twenty-one billion, one million, one hundred two thousand, one hundred eleven".