211010891149 has 2 divisors, whose sum is σ = 211010891150. Its totient is φ = 211010891148.

The previous prime is 211010891131. The next prime is 211010891153. The reversal of 211010891149 is 941198010112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174698920900 + 36311970249 = 417970^2 + 190557^2 .

It is a cyclic number.

It is not a de Polignac number, because 211010891149 - 2²¹ = 211008793997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211010891129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505445574 + 105505445575.

It is an arithmetic number, because the mean of its divisors is an integer number (105505445575).

Almost surely, 2^211010891149 is an apocalyptic number.

It is an amenable number.

211010891149 is a deficient number, since it is larger than the sum of its proper divisors (1).

211010891149 is an equidigital number, since it uses as much as digits as its factorization.

211010891149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 211010891149 in words is "two hundred eleven billion, ten million, eight hundred ninety-one thousand, one hundred forty-nine".