22196225 has 6 divisors (see below), whose sum is σ = 27523350. Its totient is φ = 17756960.

The previous prime is 22196221. The next prime is 22196243. The reversal of 22196225 is 52269122.

It can be written as a sum of positive squares in 3 ways, for example, as 2704 + 22193521 = 52^2 + 4711^2 .

It is not a de Polignac number, because 22196225 - 2² = 22196221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22196221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443900 + ... + 443949.

It is an arithmetic number, because the mean of its divisors is an integer number (4587225).

Almost surely, 2^22196225 is an apocalyptic number.

22196225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22196225 is a deficient number, since it is larger than the sum of its proper divisors (5327125).

22196225 is an equidigital number, since it uses as much as digits as its factorization.

22196225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887859 (or 887854 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 22196225 is about 4711.2869791597. The cubic root of 22196225 is about 281.0345444544.

The spelling of 22196225 in words is "twenty-two million, one hundred ninety-six thousand, two hundred twenty-five".