20221000110020 has 24 divisors (see below), whose sum is σ = 42901874464344. Its totient is φ = 8005014475776.

The previous prime is 20221000110007. The next prime is 20221000110029. The reversal of 20221000110020 is 2001100012202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1354556133316 + 18866443976704 = 1163854^2 + 4343552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20221000109983 and 20221000110010.

It is not an unprimeable number, because it can be changed into a prime (20221000110029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5211596027 + ... + 5211599906.

It is an arithmetic number, because the mean of its divisors is an integer number (1787578102681).

Almost surely, 2^{20221000110020} is an apocalyptic number.

20221000110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221000110020 is an abundant number, since it is smaller than the sum of its proper divisors (22680874354324).

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

20221000110020 is a wasteful number, since it uses less digits than its factorization.

20221000110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10423196039 (or 10423196037 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221000110020 its reverse (2001100012202), we get a palindrome (22222100122222).

The spelling of 20221000110020 in words is "twenty trillion, two hundred twenty-one billion, one hundred ten thousand, twenty".