211001121200111 has 8 divisors (see below), whose sum is σ = 230183326568448. Its totient is φ = 191818963375000.

The previous prime is 211001121200099. The next prime is 211001121200209. The reversal of 211001121200111 is 111002121100112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211001121200111 - 2³⁰ = 211000047458287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001121200011) by changing a digit.

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, 2267765 + ... + 20667486.

It is an arithmetic number, because the mean of its divisors is an integer number (28772915821056).

Almost surely, 2^{211001121200111} is an apocalyptic number.

211001121200111 is a deficient number, since it is larger than the sum of its proper divisors (19182205368337).

211001121200111 is a wasteful number, since it uses less digits than its factorization.

211001121200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23771613.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211001121200111 its reverse (111002121100112), we get a palindrome (322003242300223).

Subtracting from 211001121200111 its reverse (111002121100112), we obtain a palindrome (99999000099999).

It can be divided in two parts, 21100 and 1121200111, that added together give a palindrome (1121221211).

The spelling of 211001121200111 in words is "two hundred eleven trillion, one billion, one hundred twenty-one million, two hundred thousand, one hundred eleven".