211112201122211 has 8 divisors (see below), whose sum is σ = 211212529944864. Its totient is φ = 211011878856960.

The previous prime is 211112201122177. The next prime is 211112201122241. The reversal of 211112201122211 is 112221102211112.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211112201122211 is a prime.

It is a super-2 number, since 2×211112201122211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211112201122241) 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, 63377066 + ... + 66624896.

It is an arithmetic number, because the mean of its divisors is an integer number (26401566243108).

Almost surely, 2^{211112201122211} is an apocalyptic number.

211112201122211 is a deficient number, since it is larger than the sum of its proper divisors (100328822653).

211112201122211 is a wasteful number, since it uses less digits than its factorization.

211112201122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278701.

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

Adding to 211112201122211 its reverse (112221102211112), we get a palindrome (323333303333323).

The spelling of 211112201122211 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred one million, one hundred twenty-two thousand, two hundred eleven".