10221197 has 4 divisors (see below), whose sum is σ = 11681376. Its totient is φ = 8761020.

The previous prime is 10221191. The next prime is 10221203. The reversal of 10221197 is 79112201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10221191) and next prime (10221203).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221197 is a prime.

It is a super-2 number, since 2×10221197² = 208945736225618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730079 + ... + 730092.

It is an arithmetic number, because the mean of its divisors is an integer number (2920344).

Almost surely, 2^10221197 is an apocalyptic number.

It is an amenable number.

10221197 is a deficient number, since it is larger than the sum of its proper divisors (1460179).

10221197 is an equidigital number, since it uses as much as digits as its factorization.

10221197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460178.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 10221197 is about 3197.0606813134. The cubic root of 10221197 is about 217.0204133217.

Adding to 10221197 its reverse (79112201), we get a palindrome (89333398).

The spelling of 10221197 in words is "ten million, two hundred twenty-one thousand, one hundred ninety-seven".