211110212222111 has 8 divisors (see below), whose sum is σ = 213207954405600. Its totient is φ = 209012617922400.

The previous prime is 211110212222099. The next prime is 211110212222123. The reversal of 211110212222111 is 111222212011112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211110212222099) and next prime (211110212222123).

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 211110212222111 - 2³⁰ = 211109138480287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211110212222411) 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, 34100576 + ... + 39812933.

It is an arithmetic number, because the mean of its divisors is an integer number (26650994300700).

Almost surely, 2^{211110212222111} is an apocalyptic number.

211110212222111 is a deficient number, since it is larger than the sum of its proper divisors (2097742183489).

211110212222111 is a wasteful number, since it uses less digits than its factorization.

211110212222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73941889.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211110212222111 its reverse (111222212011112), we get a palindrome (322332424233223).

The spelling of 211110212222111 in words is "two hundred eleven trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".