220221198 has 24 divisors (see below), whose sum is σ = 480634128. Its totient is φ = 72870432.

The previous prime is 220221193. The next prime is 220221223. The reversal of 220221198 is 891122022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42186 + ... + 47117.

It is an arithmetic number, because the mean of its divisors is an integer number (20026422).

Almost surely, 2^220221198 is an apocalyptic number.

220221198 is an abundant number, since it is smaller than the sum of its proper divisors (260412930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220221198 is a wasteful number, since it uses less digits than its factorization.

220221198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89448 (or 89445 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 220221198 is about 14839.8516838950. The cubic root of 220221198 is about 603.8833287066.

It can be divided in two parts, 22022 and 1198, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 220221198 in words is "two hundred twenty million, two hundred twenty-one thousand, one hundred ninety-eight".