221952195 has 12 divisors (see below), whose sum is σ = 384717216. Its totient is φ = 118374480.

The previous prime is 221952163. The next prime is 221952239. The reversal of 221952195 is 591259122.

It is a happy number.

It is not a de Polignac number, because 221952195 - 2⁵ = 221952163 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2466091 + ... + 2466180.

It is an arithmetic number, because the mean of its divisors is an integer number (32059768).

Almost surely, 2^221952195 is an apocalyptic number.

221952195 is a deficient number, since it is larger than the sum of its proper divisors (162765021).

221952195 is a wasteful number, since it uses less digits than its factorization.

221952195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932282 (or 4932279 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 221952195 is about 14898.0601086182. The cubic root of 221952195 is about 605.4614288261.

The spelling of 221952195 in words is "two hundred twenty-one million, nine hundred fifty-two thousand, one hundred ninety-five".