1122002161 has 16 divisors (see below), whose sum is σ = 1300492800. Its totient is φ = 948100608.

The previous prime is 1122002153. The next prime is 1122002177. The reversal of 1122002161 is 1612002211.

It is not a de Polignac number, because 1122002161 - 2³ = 1122002153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122002131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525945 + ... + 528073.

It is an arithmetic number, because the mean of its divisors is an integer number (81280800).

Almost surely, 2^1122002161 is an apocalyptic number.

It is an amenable number.

1122002161 is a deficient number, since it is larger than the sum of its proper divisors (178490639).

1122002161 is an equidigital number, since it uses as much as digits as its factorization.

1122002161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1122002161 is about 33496.3007061974. The cubic root of 1122002161 is about 1039.1172739668.

Adding to 1122002161 its reverse (1612002211), we get a palindrome (2734004372).

The spelling of 1122002161 in words is "one billion, one hundred twenty-two million, two thousand, one hundred sixty-one".