211322042249 has 2 divisors, whose sum is σ = 211322042250. Its totient is φ = 211322042248.

The previous prime is 211322042221. The next prime is 211322042287. The reversal of 211322042249 is 942240223112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143305402249 + 68016640000 = 378557^2 + 260800^2 .

It is a cyclic number.

It is not a de Polignac number, because 211322042249 - 2²⁸ = 211053606793 is a prime.

It is not a weakly prime, because it can be changed into another prime (211322042149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661021124 + 105661021125.

It is an arithmetic number, because the mean of its divisors is an integer number (105661021125).

Almost surely, 2^211322042249 is an apocalyptic number.

It is an amenable number.

211322042249 is a deficient number, since it is larger than the sum of its proper divisors (1).

211322042249 is an equidigital number, since it uses as much as digits as its factorization.

211322042249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 211322042249 in words is "two hundred eleven billion, three hundred twenty-two million, forty-two thousand, two hundred forty-nine".