2021196 has 12 divisors (see below), whose sum is σ = 4716152. Its totient is φ = 673728.

The previous prime is 2021191. The next prime is 2021197. The reversal of 2021196 is 6911202.

2021196 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2021191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84205 + ... + 84228.

2^2021196 is an apocalyptic number.

It is an amenable number.

2021196 is an abundant number, since it is smaller than the sum of its proper divisors (2694956).

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

2021196 is a wasteful number, since it uses less digits than its factorization.

2021196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168440 (or 168438 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2021196 is about 1421.6877294258. The cubic root of 2021196 is about 126.4356299438.

Adding to 2021196 its reverse (6911202), we get a palindrome (8932398).

The spelling of 2021196 in words is "two million, twenty-one thousand, one hundred ninety-six".