221041049 has 2 divisors, whose sum is σ = 221041050. Its totient is φ = 221041048.

The previous prime is 221041043. The next prime is 221041061. The reversal of 221041049 is 940140122.

221041049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211848025 + 9193024 = 14555^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 221041049 - 2²⁰ = 219992473 is a prime.

It is not a weakly prime, because it can be changed into another prime (221041043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110520524 + 110520525.

It is an arithmetic number, because the mean of its divisors is an integer number (110520525).

Almost surely, 2^221041049 is an apocalyptic number.

It is an amenable number.

221041049 is a deficient number, since it is larger than the sum of its proper divisors (1).

221041049 is an equidigital number, since it uses as much as digits as its factorization.

221041049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 221041049 is about 14867.4493104904. The cubic root of 221041049 is about 604.6317901555.

The spelling of 221041049 in words is "two hundred twenty-one million, forty-one thousand, forty-nine".