2021110212 has 48 divisors (see below), whose sum is σ = 5447276352. Its totient is φ = 576430080.

The previous prime is 2021110181. The next prime is 2021110241. The reversal of 2021110212 is 2120111202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448093 + ... + 452580.

It is an arithmetic number, because the mean of its divisors is an integer number (113484924).

Almost surely, 2^2021110212 is an apocalyptic number.

2021110212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2021110212 is an abundant number, since it is smaller than the sum of its proper divisors (3426166140).

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

2021110212 is a wasteful number, since it uses less digits than its factorization.

2021110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900708 (or 900706 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2021110212 is about 44956.7593582989. The cubic root of 2021110212 is about 1264.3384109980.

Adding to 2021110212 its reverse (2120111202), we get a palindrome (4141221414).

The spelling of 2021110212 in words is "two billion, twenty-one million, one hundred ten thousand, two hundred twelve".