222424424220 has 192 divisors, whose sum is σ = 696389944320. Its totient is φ = 52753231872.

The previous prime is 222424424177. The next prime is 222424424221. The reversal of 222424424220 is 22424424222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222424424221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1890066 + ... + 2004294.

It is an arithmetic number, because the mean of its divisors is an integer number (3627030960).

Almost surely, 2^222424424220 is an apocalyptic number.

222424424220 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 222424424220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348194972160).

222424424220 is an abundant number, since it is smaller than the sum of its proper divisors (473965520100).

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

222424424220 is a wasteful number, since it uses less digits than its factorization.

222424424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114364 (or 114362 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 222424424220 its reverse (22424424222), we get a palindrome (244848848442).

The spelling of 222424424220 in words is "two hundred twenty-two billion, four hundred twenty-four million, four hundred twenty-four thousand, two hundred twenty".