1122171603 has 16 divisors (see below), whose sum is σ = 1722282240. Its totient is φ = 636626016.

The previous prime is 1122171551. The next prime is 1122171607. The reversal of 1122171603 is 3061712211.

It is not a de Polignac number, because 1122171603 - 2¹² = 1122167507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122171607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189300 + ... + 195137.

It is an arithmetic number, because the mean of its divisors is an integer number (107642640).

Almost surely, 2^1122171603 is an apocalyptic number.

1122171603 is a deficient number, since it is larger than the sum of its proper divisors (600110637).

1122171603 is a wasteful number, since it uses less digits than its factorization.

1122171603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384586.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1122171603 is about 33498.8298750867. The cubic root of 1122171603 is about 1039.1695796434.

Adding to 1122171603 its reverse (3061712211), we get a palindrome (4183883814).

The spelling of 1122171603 in words is "one billion, one hundred twenty-two million, one hundred seventy-one thousand, six hundred three".