11221197 has 16 divisors (see below), whose sum is σ = 16269120. Its totient is φ = 6838272.

The previous prime is 11221193. The next prime is 11221211. The reversal of 11221197 is 79112211.

It is not a de Polignac number, because 11221197 - 2² = 11221193 is a prime.

It is a super-2 number, since 2×11221197² = 251830524225618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2829 + ... + 5517.

It is an arithmetic number, because the mean of its divisors is an integer number (1016820).

Almost surely, 2^11221197 is an apocalyptic number.

It is an amenable number.

11221197 is a deficient number, since it is larger than the sum of its proper divisors (5047923).

11221197 is a wasteful number, since it uses less digits than its factorization.

11221197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812.

The product of its digits is 252, while the sum is 24.

The square root of 11221197 is about 3349.8055167427. The cubic root of 11221197 is about 223.8788473785.

The spelling of 11221197 in words is "eleven million, two hundred twenty-one thousand, one hundred ninety-seven".