22001210003220 has 288 divisors, whose sum is σ = 71997644759040. Its totient is φ = 5005251498240.

The previous prime is 22001210003159. The next prime is 22001210003221. The reversal of 22001210003220 is 2230001210022.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22001210003220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001210003221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1606976575 + ... + 1606990265.

It is an arithmetic number, because the mean of its divisors is an integer number (249991822080).

Almost surely, 2^{22001210003220} is an apocalyptic number.

22001210003220 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 22001210003220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35998822379520).

22001210003220 is an abundant number, since it is smaller than the sum of its proper divisors (49996434755820).

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

22001210003220 is a wasteful number, since it uses less digits than its factorization.

22001210003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16243 (or 16234 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22001210003220 its reverse (2230001210022), we get a palindrome (24231211213242).

The spelling of 22001210003220 in words is "twenty-two trillion, one billion, two hundred ten million, three thousand, two hundred twenty".