171164222 has 4 divisors (see below), whose sum is σ = 256746336. Its totient is φ = 85582110.

The previous prime is 171164219. The next prime is 171164233. The reversal of 171164222 is 222461171.

171164222 is digitally balanced in base 2 and base 3, because in such bases 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: 222461171 = 359 ⋅619669.

It is a junction number, because it is equal to n+sod(n) for n = 171164191 and 171164200.

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, 42791054 + ... + 42791057.

It is an arithmetic number, because the mean of its divisors is an integer number (64186584).

Almost surely, 2^171164222 is an apocalyptic number.

171164222 is a deficient number, since it is larger than the sum of its proper divisors (85582114).

171164222 is an equidigital number, since it uses as much as digits as its factorization.

171164222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85582113.

The product of its digits is 1344, while the sum is 26.

The square root of 171164222 is about 13082.9745088799. The cubic root of 171164222 is about 555.2275364948.

The spelling of 171164222 in words is "one hundred seventy-one million, one hundred sixty-four thousand, two hundred twenty-two".