2021110212012 has 24 divisors (see below), whose sum is σ = 4920963995136. Its totient is φ = 644411951568.

The previous prime is 2021110212001. The next prime is 2021110212019. The reversal of 2021110212012 is 2102120111202.

It is a junction number, because it is equal to n+sod(n) for n = 2021110211982 and 2021110212000.

It is not an unprimeable number, because it can be changed into a prime (2021110212019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3661431268 + ... + 3661431819.

It is an arithmetic number, because the mean of its divisors is an integer number (205040166464).

Almost surely, 2^{2021110212012} is an apocalyptic number.

It is an amenable number.

2021110212012 is an abundant number, since it is smaller than the sum of its proper divisors (2899853783124).

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

2021110212012 is a wasteful number, since it uses less digits than its factorization.

2021110212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322863117 (or 7322863115 counting only the distinct ones).

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

Adding to 2021110212012 its reverse (2102120111202), we get a palindrome (4123230323214).

The spelling of 2021110212012 in words is "two trillion, twenty-one billion, one hundred ten million, two hundred twelve thousand, twelve".