20221201210000 has 200 divisors, whose sum is σ = 56097647806464. Its totient is φ = 6914872320000.

The previous prime is 20221201209949. The next prime is 20221201210013. The reversal of 20221201210000 is 1210212202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26432880 + ... + 27187120.

Almost surely, 2^{20221201210000} is an apocalyptic number.

20221201210000 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 20221201210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28048823903232).

20221201210000 is an abundant number, since it is smaller than the sum of its proper divisors (35876446596464).

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

20221201210000 is an equidigital number, since it uses as much as digits as its factorization.

20221201210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754659 (or 754638 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20221201210000 its reverse (1210212202), we get a palindrome (20222411422202).

The spelling of 20221201210000 in words is "twenty trillion, two hundred twenty-one billion, two hundred one million, two hundred ten thousand".