1122221143 has 2 divisors, whose sum is σ = 1122221144. Its totient is φ = 1122221142.

The previous prime is 1122221077. The next prime is 1122221159. The reversal of 1122221143 is 3411222211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122221143 - 2¹³ = 1122212951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122221143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122224143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561110571 + 561110572.

It is an arithmetic number, because the mean of its divisors is an integer number (561110572).

Almost surely, 2^1122221143 is an apocalyptic number.

1122221143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221143 is an equidigital number, since it uses as much as digits as its factorization.

1122221143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 1122221143 is about 33499.5692957387. The cubic root of 1122221143 is about 1039.1848713342.

Adding to 1122221143 its reverse (3411222211), we get a palindrome (4533443354).

The spelling of 1122221143 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred forty-three".