221102200000 has 168 divisors, whose sum is σ = 598262677488. Its totient is φ = 80400000000.

The previous prime is 221102199979. The next prime is 221102200031. The reversal of 221102200000 is 2201122.

221102200000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 221102200000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2149750 + ... + 2250250.

It is an arithmetic number, because the mean of its divisors is an integer number (3561087366).

Almost surely, 2^221102200000 is an apocalyptic number.

221102200000 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 221102200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299131338744).

221102200000 is an abundant number, since it is smaller than the sum of its proper divisors (377160477488).

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

221102200000 is an equidigital number, since it uses as much as digits as its factorization.

221102200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100549 (or 100519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221102200000 its reverse (2201122), we get a palindrome (221104401122).

The spelling of 221102200000 in words is "two hundred twenty-one billion, one hundred two million, two hundred thousand".