222395220 has 120 divisors (see below), whose sum is σ = 704731104. Its totient is φ = 58705344.

The previous prime is 222395213. The next prime is 222395227. The reversal of 222395220 is 22593222.

222395220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222395213) and next prime (222395227).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222395227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 172699 + ... + 173981.

Almost surely, 2^222395220 is an apocalyptic number.

222395220 is a gapful number since it is divisible by the number (20) 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 222395220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352365552).

222395220 is an abundant number, since it is smaller than the sum of its proper divisors (482335884).

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

222395220 is a wasteful number, since it uses less digits than its factorization.

222395220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 222395220 is about 14912.9212430027. The cubic root of 222395220 is about 605.8640024199.

The spelling of 222395220 in words is "two hundred twenty-two million, three hundred ninety-five thousand, two hundred twenty".