221441198 has 32 divisors (see below), whose sum is σ = 367718400. Its totient is φ = 99180000.

The previous prime is 221441197. The next prime is 221441237. The reversal of 221441198 is 891144122.

It is a happy number.

221441198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221441191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634328 + ... + 634676.

It is an arithmetic number, because the mean of its divisors is an integer number (11491200).

Almost surely, 2^221441198 is an apocalyptic number.

221441198 is a deficient number, since it is larger than the sum of its proper divisors (146277202).

221441198 is a wasteful number, since it uses less digits than its factorization.

221441198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 4608, while the sum is 32.

The square root of 221441198 is about 14880.9004431856. The cubic root of 221441198 is about 604.9964237204.

The spelling of 221441198 in words is "two hundred twenty-one million, four hundred forty-one thousand, one hundred ninety-eight".