2204122161 has 8 divisors (see below), whose sum is σ = 2939878240. Its totient is φ = 1468890432.

The previous prime is 2204122159. The next prime is 2204122169. The reversal of 2204122161 is 1612214022.

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

It is not a de Polignac number, because 2204122161 - 2¹ = 2204122159 is a prime.

It is a super-2 number, since 2×2204122161² = 9716309001222619842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2204122169) 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, 121171 + ... + 138168.

It is an arithmetic number, because the mean of its divisors is an integer number (367484780).

Almost surely, 2^2204122161 is an apocalyptic number.

It is an amenable number.

2204122161 is a deficient number, since it is larger than the sum of its proper divisors (735756079).

2204122161 is a wasteful number, since it uses less digits than its factorization.

2204122161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262175.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2204122161 is about 46948.0794175864. The cubic root of 2204122161 is about 1301.4032502373.

Adding to 2204122161 its reverse (1612214022), we get a palindrome (3816336183).

The spelling of 2204122161 in words is "two billion, two hundred four million, one hundred twenty-two thousand, one hundred sixty-one".