20010220221200 has 240 divisors, whose sum is σ = 52688600928000. Its totient is φ = 7242669772800.

The previous prime is 20010220221193. The next prime is 20010220221239. The reversal of 20010220221200 is 212202201002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4304196476 + ... + 4304201124.

It is an arithmetic number, because the mean of its divisors is an integer number (219535837200).

Almost surely, 2^{20010220221200} is an apocalyptic number.

20010220221200 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 20010220221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26344300464000).

20010220221200 is an abundant number, since it is smaller than the sum of its proper divisors (32678380706800).

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

20010220221200 is a wasteful number, since it uses less digits than its factorization.

20010220221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010 (or 8999 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20010220221200 its reverse (212202201002), we get a palindrome (20222422422202).

The spelling of 20010220221200 in words is "twenty trillion, ten billion, two hundred twenty million, two hundred twenty-one thousand, two hundred".