2021021021112 has 64 divisors (see below), whose sum is σ = 5065665696000. Its totient is φ = 671927343360.

The previous prime is 2021021021099. The next prime is 2021021021137. The reversal of 2021021021112 is 2111201201202.

It is a super-2 number, since 2×2021021021112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021021021091 and 2021021021100.

It is a congruent number.

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, 15619788 + ... + 15748644.

It is an arithmetic number, because the mean of its divisors is an integer number (79151026500).

Almost surely, 2^{2021021021112} is an apocalyptic number.

It is an amenable number.

2021021021112 is an abundant number, since it is smaller than the sum of its proper divisors (3044644674888).

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

2021021021112 is a wasteful number, since it uses less digits than its factorization.

2021021021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130556 (or 130552 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021021021112 its reverse (2111201201202), we get a palindrome (4132222222314).

The spelling of 2021021021112 in words is "two trillion, twenty-one billion, twenty-one million, twenty-one thousand, one hundred twelve".