2021022012012 has 96 divisors (see below), whose sum is σ = 4883162941440. Its totient is φ = 649893404160.

The previous prime is 2021022011999. The next prime is 2021022012013. The reversal of 2021022012012 is 2102102201202.

It is a junction number, because it is equal to n+sod(n) for n = 2021022011982 and 2021022012000.

It is not an unprimeable number, because it can be changed into a prime (2021022012013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164612418 + ... + 164624694.

It is an arithmetic number, because the mean of its divisors is an integer number (50866280640).

Almost surely, 2^{2021022012012} is an apocalyptic number.

It is an amenable number.

2021022012012 is an abundant number, since it is smaller than the sum of its proper divisors (2862140929428).

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

2021022012012 is a wasteful number, since it uses less digits than its factorization.

2021022012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13671 (or 13669 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021022012012 its reverse (2102102201202), we get a palindrome (4123124213214).

The spelling of 2021022012012 in words is "two trillion, twenty-one billion, twenty-two million, twelve thousand, twelve".