1122008081 has 2 divisors, whose sum is σ = 1122008082. Its totient is φ = 1122008080.

The previous prime is 1122008071. The next prime is 1122008089. The reversal of 1122008081 is 1808002211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036260481 + 85747600 = 32191^2 + 9260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122008081 - 2¹⁴ = 1121991697 is a prime.

It is a super-2 number, since 2×1122008081² = 2517804267658605122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1122008089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561004040 + 561004041.

It is an arithmetic number, because the mean of its divisors is an integer number (561004041).

Almost surely, 2^1122008081 is an apocalyptic number.

It is an amenable number.

1122008081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122008081 is an equidigital number, since it uses as much as digits as its factorization.

1122008081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1122008081 is about 33496.3890740480. The cubic root of 1122008081 is about 1039.1191015222.

The spelling of 1122008081 in words is "one billion, one hundred twenty-two million, eight thousand, eighty-one".