20211012102020 has 12 divisors (see below), whose sum is σ = 42443125414284. Its totient is φ = 8084404840800.

The previous prime is 20211012102019. The next prime is 20211012102023. The reversal of 20211012102020 is 2020121011202.

It can be written as a sum of positive squares in 2 ways, for example, as 8682121543936 + 11528890558084 = 2946544^2 + 3395422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20211012101986 and 20211012102004.

It is not an unprimeable number, because it can be changed into a prime (20211012102023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505275302531 + ... + 505275302570.

It is an arithmetic number, because the mean of its divisors is an integer number (3536927117857).

Almost surely, 2^{20211012102020} is an apocalyptic number.

20211012102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211012102020 is an abundant number, since it is smaller than the sum of its proper divisors (22232113312264).

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

20211012102020 is a wasteful number, since it uses less digits than its factorization.

20211012102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010550605110 (or 1010550605108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211012102020 its reverse (2020121011202), we get a palindrome (22231133113222).

The spelling of 20211012102020 in words is "twenty trillion, two hundred eleven billion, twelve million, one hundred two thousand, twenty".