1222161593 has 2 divisors, whose sum is σ = 1222161594. Its totient is φ = 1222161592.

The previous prime is 1222161581. The next prime is 1222161599. The reversal of 1222161593 is 3951612221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221991849 + 169744 = 34957^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222161593 - 2²⁰ = 1221113017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222161599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611080796 + 611080797.

It is an arithmetic number, because the mean of its divisors is an integer number (611080797).

Almost surely, 2^1222161593 is an apocalyptic number.

It is an amenable number.

1222161593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222161593 is an equidigital number, since it uses as much as digits as its factorization.

1222161593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 1222161593 is about 34959.4278128233. The cubic root of 1222161593 is about 1069.1604305870.

The spelling of 1222161593 in words is "one billion, two hundred twenty-two million, one hundred sixty-one thousand, five hundred ninety-three".