221196 has 12 divisors (see below), whose sum is σ = 516152. Its totient is φ = 73728.

The previous prime is 221173. The next prime is 221197. The reversal of 221196 is 691122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (221197) by changing a digit.

221196 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9205 + ... + 9228.

2²²¹¹⁹⁶ is an apocalyptic number.

It is an amenable number.

221196 is an abundant number, since it is smaller than the sum of its proper divisors (294956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221196 is a wasteful number, since it uses less digits than its factorization.

221196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18440 (or 18438 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 221196 is about 470.3147882004. The cubic root of 221196 is about 60.4773040566.

The spelling of 221196 in words is "two hundred twenty-one thousand, one hundred ninety-six".