222221111110000 has 200 divisors, whose sum is σ = 543043432976000. Its totient is φ = 88058689920000.

The previous prime is 222221111109971. The next prime is 222221111110013. The reversal of 222221111110000 is 11111122222.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 8960877601 + ... + 8960902399.

It is an arithmetic number, because the mean of its divisors is an integer number (2715217164880).

Almost surely, 2^{222221111110000} is an apocalyptic number.

222221111110000 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 222221111110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271521716488000).

222221111110000 is an abundant number, since it is smaller than the sum of its proper divisors (320822321866000).

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

222221111110000 is a wasteful number, since it uses less digits than its factorization.

222221111110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33157 (or 33136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222221111110000 its reverse (11111122222), we get a palindrome (222232222232222).

The spelling of 222221111110000 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred ten thousand".