1110122089 has 2 divisors, whose sum is σ = 1110122090.
Its totient is φ = 1110122088.
The previous prime is 1110122087. The next prime is 1110122149. The reversal of 1110122089 is 9802210111.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 910832400 + 199289689 = 30180^2 + 14117^2
It is a cyclic number.
It is not a de Polignac number, because 1110122089 - 21 = 1110122087 is a prime.
Together with 1110122087, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (1110122087) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555061044 + 555061045.
It is an arithmetic number, because the mean of its divisors is an integer number (555061045).
Almost surely, 21110122089 is an apocalyptic number.
It is an amenable number.
1110122089 is a deficient number, since it is larger than the sum of its proper divisors (1).
1110122089 is an equidigital number, since it uses as much as digits as its factorization.
1110122089 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 25.
The square root of 1110122089 is about 33318.4946988906.
The cubic root of 1110122089 is about 1035.4367652593.
The spelling of 1110122089 in words is "one billion, one hundred ten million, one hundred twenty-two thousand, eighty-nine".