1222634161 has 16 divisors (see below), whose sum is σ = 1460818944. Its totient is φ = 1000503504.

The previous prime is 1222634159. The next prime is 1222634177. The reversal of 1222634161 is 1614362221.

It is not a de Polignac number, because 1222634161 - 2¹ = 1222634159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222634191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81126 + ... + 95008.

It is an arithmetic number, because the mean of its divisors is an integer number (91301184).

Almost surely, 2^1222634161 is an apocalyptic number.

It is an amenable number.

1222634161 is a deficient number, since it is larger than the sum of its proper divisors (238184783).

1222634161 is a wasteful number, since it uses less digits than its factorization.

1222634161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14460.

The product of its digits is 3456, while the sum is 28.

The square root of 1222634161 is about 34966.1859658728. The cubic root of 1222634161 is about 1069.2982153945.

Adding to 1222634161 its reverse (1614362221), we get a palindrome (2836996382).

The spelling of 1222634161 in words is "one billion, two hundred twenty-two million, six hundred thirty-four thousand, one hundred sixty-one".