211120200112221 has 32 divisors (see below), whose sum is σ = 313062516501120. Its totient is φ = 140615490137472.

The previous prime is 211120200112177. The next prime is 211120200112247. The reversal of 211120200112221 is 122211002021112.

211120200112221 is a `hidden beast` number, since 2 + 11 + 120 + 200 + 112 + 221 = 666.

It is not a de Polignac number, because 211120200112221 - 2¹⁷ = 211120199981149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211120200112194 and 211120200112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120200112271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345415330 + ... + 346025996.

It is an arithmetic number, because the mean of its divisors is an integer number (9783203640660).

Almost surely, 2^{211120200112221} is an apocalyptic number.

It is an amenable number.

211120200112221 is a deficient number, since it is larger than the sum of its proper divisors (101942316388899).

211120200112221 is a wasteful number, since it uses less digits than its factorization.

211120200112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622602 (or 622596 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211120200112221 its reverse (122211002021112), we get a palindrome (333331202133333).

The spelling of 211120200112221 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred million, one hundred twelve thousand, two hundred twenty-one".