161134430222 has 4 divisors (see below), whose sum is σ = 241701645336. Its totient is φ = 80567215110.

The previous prime is 161134430213. The next prime is 161134430267. The reversal of 161134430222 is 222034431161.

161134430222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222034431161 = 4937 ⋅44973553.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283607554 + ... + 40283607557.

It is an arithmetic number, because the mean of its divisors is an integer number (60425411334).

Almost surely, 2^161134430222 is an apocalyptic number.

161134430222 is a deficient number, since it is larger than the sum of its proper divisors (80567215114).

161134430222 is an equidigital number, since it uses as much as digits as its factorization.

161134430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80567215113.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 161134430222 its reverse (222034431161), we get a palindrome (383168861383).

The spelling of 161134430222 in words is "one hundred sixty-one billion, one hundred thirty-four million, four hundred thirty thousand, two hundred twenty-two".