2221124117 has 2 divisors, whose sum is σ = 2221124118. Its totient is φ = 2221124116.

The previous prime is 2221124071. The next prime is 2221124189. The reversal of 2221124117 is 7114211222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2029412401 + 191711716 = 45049^2 + 13846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221124117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221124092 and 2221124101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221121117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110562058 + 1110562059.

It is an arithmetic number, because the mean of its divisors is an integer number (1110562059).

Almost surely, 2^2221124117 is an apocalyptic number.

It is an amenable number.

2221124117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221124117 is an equidigital number, since it uses as much as digits as its factorization.

2221124117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 23.

The square root of 2221124117 is about 47128.8034751573. The cubic root of 2221124117 is about 1304.7408981447.

Adding to 2221124117 its reverse (7114211222), we get a palindrome (9335335339).

The spelling of 2221124117 in words is "two billion, two hundred twenty-one million, one hundred twenty-four thousand, one hundred seventeen".