20201201010020 has 24 divisors (see below), whose sum is σ = 42422655555000. Its totient is φ = 8080454988032.

The previous prime is 20201201009987. The next prime is 20201201010043. The reversal of 20201201010020 is 2001010210202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5093105956 + 20196107904064 = 71366^2 + 4494008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20201201009983 and 20201201010010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5757656 + ... + 8576304.

It is an arithmetic number, because the mean of its divisors is an integer number (1767610648125).

Almost surely, 2^{20201201010020} is an apocalyptic number.

20201201010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201201010020 is an abundant number, since it is smaller than the sum of its proper divisors (22221454544980).

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

20201201010020 is a wasteful number, since it uses less digits than its factorization.

20201201010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177007 (or 3177005 counting only the distinct ones).

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

Adding to 20201201010020 its reverse (2001010210202), we get a palindrome (22202211220222).

The spelling of 20201201010020 in words is "twenty trillion, two hundred one billion, two hundred one million, ten thousand, twenty".