211112121122201 has 8 divisors (see below), whose sum is σ = 227352031979520. Its totient is φ = 194872284111312.

The previous prime is 211112121122183. The next prime is 211112121122209. The reversal of 211112121122201 is 102221121211112.

It is a happy number.

211112121122201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-211112121122201 is a prime.

It is a super-2 number, since 2×211112121122201² (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 (211112121122209) 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, 12451631 + ... + 24026388.

It is an arithmetic number, because the mean of its divisors is an integer number (28419003997440).

Almost surely, 2^{211112121122201} is an apocalyptic number.

It is an amenable number.

211112121122201 is a deficient number, since it is larger than the sum of its proper divisors (16239910857319).

211112121122201 is a wasteful number, since it uses less digits than its factorization.

211112121122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36923215.

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

Adding to 211112121122201 its reverse (102221121211112), we get a palindrome (313333242333313).

The spelling of 211112121122201 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".