1322220110161 has 8 divisors (see below), whose sum is σ = 1357972342184. Its totient is φ = 1286468749440.

The previous prime is 1322220110089. The next prime is 1322220110191. The reversal of 1322220110161 is 1610110222231.

It can be written as a sum of positive squares in 4 ways, for example, as 366236780625 + 955983329536 = 605175^2 + 977744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322220110161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322220110191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3892981 + ... + 4218973.

It is an arithmetic number, because the mean of its divisors is an integer number (169746542773).

Almost surely, 2^{1322220110161} is an apocalyptic number.

It is an amenable number.

1322220110161 is a deficient number, since it is larger than the sum of its proper divisors (35752232023).

1322220110161 is a wasteful number, since it uses less digits than its factorization.

1322220110161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435651.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1322220110161 its reverse (1610110222231), we get a palindrome (2932330332392).

The spelling of 1322220110161 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, one hundred ten thousand, one hundred sixty-one".