197222271 has 8 divisors (see below), whose sum is σ = 263558400. Its totient is φ = 131183832.

The previous prime is 197222269. The next prime is 197222281. The reversal of 197222271 is 172222791.

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

It is not a de Polignac number, because 197222271 - 2¹ = 197222269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197222281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72871 + ... + 75528.

It is an arithmetic number, because the mean of its divisors is an integer number (32944800).

Almost surely, 2^197222271 is an apocalyptic number.

197222271 is a deficient number, since it is larger than the sum of its proper divisors (66336129).

197222271 is a wasteful number, since it uses less digits than its factorization.

197222271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148845.

The product of its digits is 7056, while the sum is 33.

The square root of 197222271 is about 14043.5846919510. The cubic root of 197222271 is about 582.0835398085.

The spelling of 197222271 in words is "one hundred ninety-seven million, two hundred twenty-two thousand, two hundred seventy-one".