1111222873 has 2 divisors, whose sum is σ = 1111222874. Its totient is φ = 1111222872.

The previous prime is 1111222859. The next prime is 1111222913. The reversal of 1111222873 is 3782221111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690480729 + 420742144 = 26277^2 + 20512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111222873 - 2⁹ = 1111222361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111022873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555611436 + 555611437.

It is an arithmetic number, because the mean of its divisors is an integer number (555611437).

Almost surely, 2^1111222873 is an apocalyptic number.

It is an amenable number.

1111222873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111222873 is an equidigital number, since it uses as much as digits as its factorization.

1111222873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 28.

The square root of 1111222873 is about 33335.0097195126. The cubic root of 1111222873 is about 1035.7788945044.

Adding to 1111222873 its reverse (3782221111), we get a palindrome (4893443984).

The spelling of 1111222873 in words is "one billion, one hundred eleven million, two hundred twenty-two thousand, eight hundred seventy-three".