222220210020 has 192 divisors, whose sum is σ = 665064691200. Its totient is φ = 55246233600.

The previous prime is 222220209947. The next prime is 222220210057. The reversal of 222220210020 is 20012022222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59911926 + ... + 59915634.

It is an arithmetic number, because the mean of its divisors is an integer number (3463878600).

Almost surely, 2^222220210020 is an apocalyptic number.

222220210020 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 222220210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332532345600).

222220210020 is an abundant number, since it is smaller than the sum of its proper divisors (442844481180).

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

222220210020 is a wasteful number, since it uses less digits than its factorization.

222220210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222220210020 its reverse (20012022222), we get a palindrome (242232232242).

The spelling of 222220210020 in words is "two hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, twenty".