211011222110111 has 8 divisors (see below), whose sum is σ = 222375652262400. Its totient is φ = 199672649593560.

The previous prime is 211011222110093. The next prime is 211011222110137. The reversal of 211011222110111 is 111011222110112.

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 211011222110111 - 2²⁶ = 211011155001247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211011222110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011222110411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6464392175 + ... + 6464424816.

It is an arithmetic number, because the mean of its divisors is an integer number (27796956532800).

Almost surely, 2^{211011222110111} is an apocalyptic number.

211011222110111 is a deficient number, since it is larger than the sum of its proper divisors (11364430152289).

211011222110111 is a wasteful number, since it uses less digits than its factorization.

211011222110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928817869.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 211011222110111 its reverse (111011222110112), we get a palindrome (322022444220223).

Subtracting from 211011222110111 its reverse (111011222110112), we obtain a palindrome (99999999999999).

The spelling of 211011222110111 in words is "two hundred eleven trillion, eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred eleven".