1101122081 has 2 divisors, whose sum is σ = 1101122082. Its totient is φ = 1101122080.

The previous prime is 1101122023. The next prime is 1101122089. The reversal of 1101122081 is 1802211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955799056 + 145323025 = 30916^2 + 12055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101122081 - 2⁶ = 1101122017 is a prime.

It is a super-2 number, since 2×1101122081² = 2424939674531541122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1101122089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561040 + 550561041.

It is an arithmetic number, because the mean of its divisors is an integer number (550561041).

Almost surely, 2^1101122081 is an apocalyptic number.

It is an amenable number.

1101122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101122081 is an equidigital number, since it uses as much as digits as its factorization.

1101122081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 1101122081 is about 33183.1595994113. The cubic root of 1101122081 is about 1032.6309967522.

Adding to 1101122081 its reverse (1802211011), we get a palindrome (2903333092).

The spelling of 1101122081 in words is "one billion, one hundred one million, one hundred twenty-two thousand, eighty-one".