222191973 has 12 divisors (see below), whose sum is σ = 331297408. Its totient is φ = 143349480.

The previous prime is 222191941. The next prime is 222192007. The reversal of 222191973 is 379191222.

It is not a de Polignac number, because 222191973 - 2⁵ = 222191941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222191903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397915 + ... + 398472.

Almost surely, 2^222191973 is an apocalyptic number.

It is an amenable number.

222191973 is a deficient number, since it is larger than the sum of its proper divisors (109105435).

222191973 is a wasteful number, since it uses less digits than its factorization.

222191973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796424 (or 796421 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 222191973 is about 14906.1052257120. The cubic root of 222191973 is about 605.6793797880.

The spelling of 222191973 in words is "two hundred twenty-two million, one hundred ninety-one thousand, nine hundred seventy-three".