22197266 has 16 divisors (see below), whose sum is σ = 40979904. Its totient is φ = 8781264.

The previous prime is 22197251. The next prime is 22197281. The reversal of 22197266 is 66279122.

It is an interprime number because it is at equal distance from previous prime (22197251) and next prime (22197281).

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60800 + ... + 61163.

It is an arithmetic number, because the mean of its divisors is an integer number (2561244).

Almost surely, 2^22197266 is an apocalyptic number.

22197266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22197266 is a deficient number, since it is larger than the sum of its proper divisors (18782638).

22197266 is a wasteful number, since it uses less digits than its factorization.

22197266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121985.

The product of its digits is 18144, while the sum is 35.

The square root of 22197266 is about 4711.3974572307. The cubic root of 22197266 is about 281.0389378800.

The spelling of 22197266 in words is "twenty-two million, one hundred ninety-seven thousand, two hundred sixty-six".