2021212 has 12 divisors (see below), whose sum is σ = 3572856.
Its totient is φ = 1000400.
The previous prime is 2021203. The next prime is 2021219. The reversal of 2021212 is 2121202.
2021212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021219) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098 + ... + 2905.
It is an arithmetic number, because the mean of its divisors is an integer number (297738).
22021212 is an apocalyptic number.
It is an amenable number.
2021212 is a deficient number, since it is larger than the sum of its proper divisors (1551644).
2021212 is a wasteful number, since it uses less digits than its factorization.
2021212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5108 (or 5106 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
The square root of 2021212 is about 1421.6933565295.
The cubic root of 2021212 is about 126.4359635689.
Subtracting from 2021212 its sum of digits (10), we obtain a palindrome (2021202).
Adding to 2021212 its reverse (2121202), we get a palindrome (4142414).
The spelling of 2021212 in words is "two million, twenty-one thousand, two hundred twelve".