222144020 has 48 divisors (see below), whose sum is σ = 545559168. Its totient is φ = 74390400.

The previous prime is 222144017. The next prime is 222144023. The reversal of 222144020 is 20441222.

It is a happy number.

222144020 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 (222144017) and next prime (222144023).

It is a self number, because there is not a number n which added to its sum of digits gives 222144020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222144023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12431 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (11365816).

Almost surely, 2^222144020 is an apocalyptic number.

222144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222144020 is an abundant number, since it is smaller than the sum of its proper divisors (323415148).

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

222144020 is a wasteful number, since it uses less digits than its factorization.

222144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36960 (or 36958 counting only the distinct ones).

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

The square root of 222144020 is about 14904.4966369214. The cubic root of 222144020 is about 605.6358045070.

Adding to 222144020 its reverse (20441222), we get a palindrome (242585242).

The spelling of 222144020 in words is "two hundred twenty-two million, one hundred forty-four thousand, twenty".