211141121 has 2 divisors, whose sum is σ = 211141122. Its totient is φ = 211141120.

The previous prime is 211141111. The next prime is 211141123. The reversal of 211141121 is 121141112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209931121 + 1210000 = 14489^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 211141121 - 2⁶ = 211141057 is a prime.

Together with 211141123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 211141096 and 211141105.

It is not a weakly prime, because it can be changed into another prime (211141123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105570560 + 105570561.

It is an arithmetic number, because the mean of its divisors is an integer number (105570561).

Almost surely, 2^211141121 is an apocalyptic number.

It is an amenable number.

211141121 is a deficient number, since it is larger than the sum of its proper divisors (1).

211141121 is an equidigital number, since it uses as much as digits as its factorization.

211141121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 14.

The square root of 211141121 is about 14530.6958195401. The cubic root of 211141121 is about 595.4668755190.

Adding to 211141121 its reverse (121141112), we get a palindrome (332282233).

Subtracting from 211141121 its reverse (121141112), we obtain a palindrome (90000009).

The spelling of 211141121 in words is "two hundred eleven million, one hundred forty-one thousand, one hundred twenty-one".