220371216 has 120 divisors (see below), whose sum is σ = 630959616. Its totient is φ = 65882880.

The previous prime is 220371199. The next prime is 220371227. The reversal of 220371216 is 612173022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1153681 + ... + 1153871.

Almost surely, 2^220371216 is an apocalyptic number.

220371216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220371216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315479808).

220371216 is an abundant number, since it is smaller than the sum of its proper divisors (410588400).

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

220371216 is a wasteful number, since it uses less digits than its factorization.

220371216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 220371216 is about 14844.9053887184. The cubic root of 220371216 is about 604.0204223903.

The spelling of 220371216 in words is "two hundred twenty million, three hundred seventy-one thousand, two hundred sixteen".