20211201010020 has 192 divisors, whose sum is σ = 63782666438400. Its totient is φ = 4751639101440.

The previous prime is 20211201009991. The next prime is 20211201010031. The reversal of 20211201010020 is 2001010211202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20211201009978 and 20211201010005.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4134111 + ... + 7583750.

It is an arithmetic number, because the mean of its divisors is an integer number (332201387700).

Almost surely, 2^{20211201010020} is an apocalyptic number.

20211201010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211201010020 is an abundant number, since it is smaller than the sum of its proper divisors (43571465428380).

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

20211201010020 is a wasteful number, since it uses less digits than its factorization.

20211201010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11717998 (or 11717996 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20211201010020 its reverse (2001010211202), we get a palindrome (22212211221222).

The spelling of 20211201010020 in words is "twenty trillion, two hundred eleven billion, two hundred one million, ten thousand, twenty".