22197207 has 8 divisors (see below), whose sum is σ = 30226176. Its totient is φ = 14483192.

The previous prime is 22197193. The next prime is 22197233. The reversal of 22197207 is 70279122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22197207 - 2⁷ = 22197079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22197907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78573 + ... + 78854.

It is an arithmetic number, because the mean of its divisors is an integer number (3778272).

Almost surely, 2^22197207 is an apocalyptic number.

22197207 is a deficient number, since it is larger than the sum of its proper divisors (8028969).

22197207 is a wasteful number, since it uses less digits than its factorization.

22197207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157477.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 22197207 is about 4711.3911958147. The cubic root of 22197207 is about 281.0386888806.

The spelling of 22197207 in words is "twenty-two million, one hundred ninety-seven thousand, two hundred seven".