2021100011212 has 12 divisors (see below), whose sum is σ = 3536946123760. Its totient is φ = 1010543975856.

The previous prime is 2021100011207. The next prime is 2021100011239. The reversal of 2021100011212 is 2121100011202.

It is a super-2 number, since 2×2021100011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021100011192 and 2021100011201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705912 + ... + 2130847.

Almost surely, 2^{2021100011212} is an apocalyptic number.

It is an amenable number.

2021100011212 is a deficient number, since it is larger than the sum of its proper divisors (1515846112548).

2021100011212 is a wasteful number, since it uses less digits than its factorization.

2021100011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014880 (or 3014878 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021100011212 its reverse (2121100011202), we get a palindrome (4142200022414).

The spelling of 2021100011212 in words is "two trillion, twenty-one billion, one hundred million, eleven thousand, two hundred twelve".