222440120 has 64 divisors (see below), whose sum is σ = 573350400. Its totient is φ = 76083840.

The previous prime is 222440093. The next prime is 222440147. The reversal of 222440120 is 21044222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222440093) and next prime (222440147).

It is a super-2 number, since 2×222440120² = 98959213971228800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176051 + ... + 177309.

It is an arithmetic number, because the mean of its divisors is an integer number (8958600).

Almost surely, 2^222440120 is an apocalyptic number.

222440120 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 222440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286675200).

222440120 is an abundant number, since it is smaller than the sum of its proper divisors (350910280).

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

222440120 is a wasteful number, since it uses less digits than its factorization.

222440120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 222440120 is about 14914.4265729528. The cubic root of 222440120 is about 605.9047728753.

Adding to 222440120 its reverse (21044222), we get a palindrome (243484342).

The spelling of 222440120 in words is "two hundred twenty-two million, four hundred forty thousand, one hundred twenty".