1222099097 has 2 divisors, whose sum is σ = 1222099098. Its totient is φ = 1222099096.

The previous prime is 1222099079. The next prime is 1222099163. The reversal of 1222099097 is 7909902221.

Together with previous prime (1222099079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155252121 + 66846976 = 33989^2 + 8176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222099097 - 2¹² = 1222095001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222099597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611049548 + 611049549.

It is an arithmetic number, because the mean of its divisors is an integer number (611049549).

Almost surely, 2^1222099097 is an apocalyptic number.

It is an amenable number.

1222099097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222099097 is an equidigital number, since it uses as much as digits as its factorization.

1222099097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1222099097 is about 34958.5339652566. The cubic root of 1222099097 is about 1069.1422062132.

The spelling of 1222099097 in words is "one billion, two hundred twenty-two million, ninety-nine thousand, ninety-seven".