2021212011020 has 48 divisors (see below), whose sum is σ = 4299854485248. Its totient is φ = 797968620480.

The previous prime is 2021212010989. The next prime is 2021212011037. The reversal of 2021212011020 is 201102121202.

It is a junction number, because it is equal to n+sod(n) for n = 2021212010986 and 2021212011004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120967 + ... + 2301953.

It is an arithmetic number, because the mean of its divisors is an integer number (89580301776).

Almost surely, 2^{2021212011020} is an apocalyptic number.

2021212011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021212011020 is an abundant number, since it is smaller than the sum of its proper divisors (2278642474228).

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

2021212011020 is a wasteful number, since it uses less digits than its factorization.

2021212011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182110 (or 1182108 counting only the distinct ones).

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

Adding to 2021212011020 its reverse (201102121202), we get a palindrome (2222314132222).

The spelling of 2021212011020 in words is "two trillion, twenty-one billion, two hundred twelve million, eleven thousand, twenty".