1198221 has 8 divisors (see below), whose sum is σ = 1604064. Its totient is φ = 795600.

The previous prime is 1198217. The next prime is 1198229. The reversal of 1198221 is 1228911.

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

It is not a de Polignac number, because 1198221 - 2² = 1198217 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1198191 and 1198200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198229) 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, 271 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (200508).

2^1198221 is an apocalyptic number.

It is an amenable number.

1198221 is a deficient number, since it is larger than the sum of its proper divisors (405843).

1198221 is a wasteful number, since it uses less digits than its factorization.

1198221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its digits is 288, while the sum is 24.

The square root of 1198221 is about 1094.6328151485. The cubic root of 1198221 is about 106.2133179024.

The spelling of 1198221 in words is "one million, one hundred ninety-eight thousand, two hundred twenty-one".