1166010121 has 2 divisors, whose sum is σ = 1166010122. Its totient is φ = 1166010120.

The previous prime is 1166010103. The next prime is 1166010133. The reversal of 1166010121 is 1210106611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593604496 + 572405625 = 24364^2 + 23925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166010121 - 2⁵ = 1166010089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166010821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583005060 + 583005061.

It is an arithmetic number, because the mean of its divisors is an integer number (583005061).

Almost surely, 2^1166010121 is an apocalyptic number.

It is an amenable number.

1166010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166010121 is an equidigital number, since it uses as much as digits as its factorization.

1166010121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1166010121 is about 34146.8903562242. The cubic root of 1166010121 is about 1052.5290873868.

Adding to 1166010121 its reverse (1210106611), we get a palindrome (2376116732).

The spelling of 1166010121 in words is "one billion, one hundred sixty-six million, ten thousand, one hundred twenty-one".