21222300300000 has 144 divisors (see below), whose sum is σ = 69631217160624. Its totient is φ = 5659280000000.

The previous prime is 21222300299999. The next prime is 21222300300001. The reversal of 21222300300000 is 300322212.

21222300300000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (21222300299999) and next prime (21222300300001).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222300300001) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 35070501 + ... + 35670500.

It is an arithmetic number, because the mean of its divisors is an integer number (483550119171).

Almost surely, 2^{21222300300000} is an apocalyptic number.

21222300300000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21222300300000 is an abundant number, since it is smaller than the sum of its proper divisors (48408916860624).

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

21222300300000 is an frugal number, since it uses more digits than its factorization.

21222300300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70741039 (or 70741011 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21222300300000 its reverse (300322212), we get a palindrome (21222600622212).

The spelling of 21222300300000 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred million, three hundred thousand".