1122002165 has 4 divisors (see below), whose sum is σ = 1346402604. Its totient is φ = 897601728.

The previous prime is 1122002153. The next prime is 1122002177. The reversal of 1122002165 is 5612002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5612002211 = 739 ⋅7594049.

It is an interprime number because it is at equal distance from previous prime (1122002153) and next prime (1122002177).

It can be written as a sum of positive squares in 2 ways, for example, as 240684196 + 881317969 = 15514^2 + 29687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122002165 - 2⁴ = 1122002149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112200212 + ... + 112200221.

It is an arithmetic number, because the mean of its divisors is an integer number (336600651).

Almost surely, 2^1122002165 is an apocalyptic number.

It is an amenable number.

1122002165 is a deficient number, since it is larger than the sum of its proper divisors (224400439).

1122002165 is an equidigital number, since it uses as much as digits as its factorization.

1122002165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224400438.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1122002165 is about 33496.3007659055. The cubic root of 1122002165 is about 1039.1172752016.

Adding to 1122002165 its reverse (5612002211), we get a palindrome (6734004376).

The spelling of 1122002165 in words is "one billion, one hundred twenty-two million, two thousand, one hundred sixty-five".