20212101021020 has 24 divisors (see below), whose sum is σ = 44679381205200. Its totient is φ = 7659322492032.

The previous prime is 20212101020983. The next prime is 20212101021029. The reversal of 20212101021020 is 2012010121202.

It is a junction number, because it is equal to n+sod(n) for n = 20212101020986 and 20212101021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212101021029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26594869385 + ... + 26594870144.

It is an arithmetic number, because the mean of its divisors is an integer number (1861640883550).

Almost surely, 2^{20212101021020} is an apocalyptic number.

20212101021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212101021020 is an abundant number, since it is smaller than the sum of its proper divisors (24467280184180).

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

20212101021020 is a wasteful number, since it uses less digits than its factorization.

20212101021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53189739557 (or 53189739555 counting only the distinct ones).

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

Adding to 20212101021020 its reverse (2012010121202), we get a palindrome (22224111142222).

The spelling of 20212101021020 in words is "twenty trillion, two hundred twelve billion, one hundred one million, twenty-one thousand, twenty".