8911220221198 has 4 divisors (see below), whose sum is σ = 13366830331800. Its totient is φ = 4455610110598.

The previous prime is 8911220221193. The next prime is 8911220221207.

It is a happy number.

8911220221198 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8911220221193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2227805055298 + ... + 2227805055301.

It is an arithmetic number, because the mean of its divisors is an integer number (3341707582950).

Almost surely, 2^{8911220221198} is an apocalyptic number.

8911220221198 is a deficient number, since it is larger than the sum of its proper divisors (4455610110602).

8911220221198 is a wasteful number, since it uses less digits than its factorization.

8911220221198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455610110601.

The product of its (nonzero) digits is 82944, while the sum is 46.

The spelling of 8911220221198 in words is "eight trillion, nine hundred eleven billion, two hundred twenty million, two hundred twenty-one thousand, one hundred ninety-eight".