1222303109 has 2 divisors, whose sum is σ = 1222303110. Its totient is φ = 1222303108.

The previous prime is 1222303097. The next prime is 1222303133. The reversal of 1222303109 is 9013032221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 698122084 + 524181025 = 26422^2 + 22895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222303109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222303139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611151554 + 611151555.

It is an arithmetic number, because the mean of its divisors is an integer number (611151555).

Almost surely, 2^1222303109 is an apocalyptic number.

It is an amenable number.

1222303109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222303109 is an equidigital number, since it uses as much as digits as its factorization.

1222303109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1222303109 is about 34961.4517576144. The cubic root of 1222303109 is about 1069.2016955798.

The spelling of 1222303109 in words is "one billion, two hundred twenty-two million, three hundred three thousand, one hundred nine".