2248669021 has 2 divisors, whose sum is σ = 2248669022. Its totient is φ = 2248669020.

The previous prime is 2248669009. The next prime is 2248669069. The reversal of 2248669021 is 1209668422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2243443225 + 5225796 = 47365^2 + 2286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2248669021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2248669121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124334510 + 1124334511.

It is an arithmetic number, because the mean of its divisors is an integer number (1124334511).

Almost surely, 2^2248669021 is an apocalyptic number.

It is an amenable number.

2248669021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2248669021 is an equidigital number, since it uses as much as digits as its factorization.

2248669021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 2248669021 is about 47420.1330765741. The cubic root of 2248669021 is about 1310.1122645276.

The spelling of 2248669021 in words is "two billion, two hundred forty-eight million, six hundred sixty-nine thousand, twenty-one".