1222212097 has 2 divisors, whose sum is σ = 1222212098. Its totient is φ = 1222212096.

The previous prime is 1222212077. The next prime is 1222212113. The reversal of 1222212097 is 7902122221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 928055296 + 294156801 = 30464^2 + 17151^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222212097 - 2¹¹ = 1222210049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222212077) 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, 611106048 + 611106049.

It is an arithmetic number, because the mean of its divisors is an integer number (611106049).

Almost surely, 2^1222212097 is an apocalyptic number.

It is an amenable number.

1222212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222212097 is an equidigital number, since it uses as much as digits as its factorization.

1222212097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1222212097 is about 34960.1501283962. The cubic root of 1222212097 is about 1069.1751575361.

The spelling of 1222212097 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, ninety-seven".