1117268221 has 2 divisors, whose sum is σ = 1117268222. Its totient is φ = 1117268220.

The previous prime is 1117268209. The next prime is 1117268233. The reversal of 1117268221 is 1228627111.

It is a balanced prime because it is at equal distance from previous prime (1117268209) and next prime (1117268233).

It can be written as a sum of positive squares in only one way, i.e., 861716025 + 255552196 = 29355^2 + 15986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117268221 - 2¹⁵ = 1117235453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117268261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558634110 + 558634111.

It is an arithmetic number, because the mean of its divisors is an integer number (558634111).

Almost surely, 2^1117268221 is an apocalyptic number.

It is an amenable number.

1117268221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117268221 is an equidigital number, since it uses as much as digits as its factorization.

1117268221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The square root of 1117268221 is about 33425.5623886869. The cubic root of 1117268221 is about 1037.6538028336.

The spelling of 1117268221 in words is "one billion, one hundred seventeen million, two hundred sixty-eight thousand, two hundred twenty-one".