211121021120211 has 12 divisors (see below), whose sum is σ = 304972519105800. Its totient is φ = 140738147547360.

The previous prime is 211121021120201. The next prime is 211121021120221. The reversal of 211121021120211 is 112021120121112.

It is a happy number.

211121021120211 is a `hidden beast` number, since 2 + 1 + 11 + 210 + 211 + 20 + 211 = 666.

It is an interprime number because it is at equal distance from previous prime (211121021120201) and next prime (211121021120221).

It is not a de Polignac number, because 211121021120211 - 2⁵ = 211121021120179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211121021120201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766510170 + ... + 766785551.

It is an arithmetic number, because the mean of its divisors is an integer number (25414376592150).

Almost surely, 2^{211121021120211} is an apocalyptic number.

211121021120211 is a deficient number, since it is larger than the sum of its proper divisors (93851497985589).

211121021120211 is a wasteful number, since it uses less digits than its factorization.

211121021120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533311026 (or 1533311023 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211121021120211 its reverse (112021120121112), we get a palindrome (323142141241323).

Subtracting from 211121021120211 its reverse (112021120121112), we obtain a palindrome (99099900999099).

The spelling of 211121021120211 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty thousand, two hundred eleven".