211112001002221 has 8 divisors (see below), whose sum is σ = 231849665532000. Its totient is φ = 190631947212240.

The previous prime is 211112001002213. The next prime is 211112001002249. The reversal of 211112001002221 is 122200100211112.

211112001002221 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 not a de Polignac number, because 211112001002221 - 2³ = 211112001002213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211112001002195 and 211112001002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112001002281) 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, 64402683231 + ... + 64402686508.

It is an arithmetic number, because the mean of its divisors is an integer number (28981208191500).

Almost surely, 2^{211112001002221} is an apocalyptic number.

It is an amenable number.

211112001002221 is a deficient number, since it is larger than the sum of its proper divisors (20737664529779).

211112001002221 is a wasteful number, since it uses less digits than its factorization.

211112001002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128805369899.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211112001002221 its reverse (122200100211112), we get a palindrome (333312101213333).

The spelling of 211112001002221 in words is "two hundred eleven trillion, one hundred twelve billion, one million, two thousand, two hundred twenty-one".