2213122649 has 2 divisors, whose sum is σ = 2213122650. Its totient is φ = 2213122648.

The previous prime is 2213122621. The next prime is 2213122673. The reversal of 2213122649 is 9462213122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2141838400 + 71284249 = 46280^2 + 8443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213122649 is a prime.

It is not a weakly prime, because it can be changed into another prime (2213122349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106561324 + 1106561325.

It is an arithmetic number, because the mean of its divisors is an integer number (1106561325).

Almost surely, 2^2213122649 is an apocalyptic number.

It is an amenable number.

2213122649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213122649 is an equidigital number, since it uses as much as digits as its factorization.

2213122649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 2213122649 is about 47043.8375241646. The cubic root of 2213122649 is about 1303.1722624076.

The spelling of 2213122649 in words is "two billion, two hundred thirteen million, one hundred twenty-two thousand, six hundred forty-nine".