2221030249 has 2 divisors, whose sum is σ = 2221030250. Its totient is φ = 2221030248.

The previous prime is 2221030211. The next prime is 2221030267. The reversal of 2221030249 is 9420301222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1756196649 + 464833600 = 41907^2 + 21560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221030249 - 2¹³ = 2221022057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221030549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110515124 + 1110515125.

It is an arithmetic number, because the mean of its divisors is an integer number (1110515125).

Almost surely, 2^2221030249 is an apocalyptic number.

It is an amenable number.

2221030249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221030249 is an equidigital number, since it uses as much as digits as its factorization.

2221030249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2221030249 is about 47127.8075980625. The cubic root of 2221030249 is about 1304.7225177905.

The spelling of 2221030249 in words is "two billion, two hundred twenty-one million, thirty thousand, two hundred forty-nine".