221030023210000 has 100 divisors (see below), whose sum is σ = 535502607125200. Its totient is φ = 88351405776000.

The previous prime is 221030023209881. The next prime is 221030023210037. The reversal of 221030023210000 is 12320030122.

It is a tau number, because it is divible by the number of its divisors (100).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7015291 + ... + 22164709.

It is an arithmetic number, because the mean of its divisors is an integer number (5355026071252).

Almost surely, 2^{221030023210000} is an apocalyptic number.

221030023210000 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 221030023210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267751303562600).

221030023210000 is an abundant number, since it is smaller than the sum of its proper divisors (314472583915200).

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

221030023210000 is a wasteful number, since it uses less digits than its factorization.

221030023210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150906 (or 15150885 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221030023210000 its reverse (12320030122), we get a palindrome (221042343240122).

The spelling of 221030023210000 in words is "two hundred twenty-one trillion, thirty billion, twenty-three million, two hundred ten thousand".