222987549049 has 2 divisors, whose sum is σ = 222987549050. Its totient is φ = 222987549048.

The previous prime is 222987549011. The next prime is 222987549073. The reversal of 222987549049 is 940945789222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205535289600 + 17452259449 = 453360^2 + 132107^2 .

It is a cyclic number.

It is not a de Polignac number, because 222987549049 - 2⁷ = 222987548921 is a prime.

It is not a weakly prime, because it can be changed into another prime (222987549149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111493774524 + 111493774525.

It is an arithmetic number, because the mean of its divisors is an integer number (111493774525).

Almost surely, 2^222987549049 is an apocalyptic number.

It is an amenable number.

222987549049 is a deficient number, since it is larger than the sum of its proper divisors (1).

222987549049 is an equidigital number, since it uses as much as digits as its factorization.

222987549049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 222987549049 in words is "two hundred twenty-two billion, nine hundred eighty-seven million, five hundred forty-nine thousand, forty-nine".