2021232122020 has 48 divisors (see below), whose sum is σ = 4462935447600. Its totient is φ = 767816824320.

The previous prime is 2021232121963. The next prime is 2021232122051. The reversal of 2021232122020 is 202212321202.

It can be written as a sum of positive squares in 8 ways, for example, as 73471355136 + 1947760766884 = 271056^2 + 1395622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28529235 + ... + 28599994.

It is an arithmetic number, because the mean of its divisors is an integer number (92977821825).

Almost surely, 2^{2021232122020} is an apocalyptic number.

2021232122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021232122020 is an abundant number, since it is smaller than the sum of its proper divisors (2441703325580).

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

2021232122020 is a wasteful number, since it uses less digits than its factorization.

2021232122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57129328 (or 57129326 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2021232122020 its reverse (202212321202), we get a palindrome (2223444443222).

It can be divided in two parts, 20212321 and 22020, that added together give a triangular number (20234341 = T₆₃₆₁).

The spelling of 2021232122020 in words is "two trillion, twenty-one billion, two hundred thirty-two million, one hundred twenty-two thousand, twenty".