2021530221412 has 48 divisors (see below), whose sum is σ = 4073077636992. Its totient is φ = 869605194240.

The previous prime is 2021530221391. The next prime is 2021530221449. The reversal of 2021530221412 is 2141220351202.

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, 11009914 + ... + 11192017.

It is an arithmetic number, because the mean of its divisors is an integer number (84855784104).

Almost surely, 2^{2021530221412} is an apocalyptic number.

It is an amenable number.

2021530221412 is an abundant number, since it is smaller than the sum of its proper divisors (2051547415580).

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

2021530221412 is a wasteful number, since it uses less digits than its factorization.

2021530221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22202068 (or 22202066 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2021530221412 its reverse (2141220351202), we get a palindrome (4162750572614).

The spelling of 2021530221412 in words is "two trillion, twenty-one billion, five hundred thirty million, two hundred twenty-one thousand, four hundred twelve".