161022226 has 8 divisors (see below), whose sum is σ = 254245680. Its totient is φ = 76273668.

The previous prime is 161022203. The next prime is 161022233. The reversal of 161022226 is 622220161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161022197 and 161022206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118676 + ... + 2118751.

It is an arithmetic number, because the mean of its divisors is an integer number (31780710).

Almost surely, 2^161022226 is an apocalyptic number.

161022226 is a deficient number, since it is larger than the sum of its proper divisors (93223454).

161022226 is a wasteful number, since it uses less digits than its factorization.

161022226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237448.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 161022226 is about 12689.4533373191. The cubic root of 161022226 is about 544.0372149606.

Adding to 161022226 its reverse (622220161), we get a palindrome (783242387).

The spelling of 161022226 in words is "one hundred sixty-one million, twenty-two thousand, two hundred twenty-six".