222202212221000 has 512 divisors, whose sum is σ = 606489182208000. Its totient is φ = 75434326912000.

The previous prime is 222202212220993. The next prime is 222202212221069. The reversal of 222202212221000 is 122212202222.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 127 ways as a sum of consecutive naturals, for example, 1244329721 + ... + 1244508279.

It is an arithmetic number, because the mean of its divisors is an integer number (1184549184000).

Almost surely, 2^{222202212221000} is an apocalyptic number.

222202212221000 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 222202212221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303244591104000).

222202212221000 is an abundant number, since it is smaller than the sum of its proper divisors (384286969987000).

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

222202212221000 is a wasteful number, since it uses less digits than its factorization.

222202212221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178750 (or 178736 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222202212221000 its reverse (122212202222), we get a palindrome (222324424423222).

The spelling of 222202212221000 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twelve million, two hundred twenty-one thousand".