2021202110212 has 6 divisors (see below), whose sum is σ = 3537103692878. Its totient is φ = 1010601055104.

The previous prime is 2021202110197. The next prime is 2021202110219. The reversal of 2021202110212 is 2120112021202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1606084774596 + 415117335616 = 1267314^2 + 644296^2 .

It is not an unprimeable number, because it can be changed into a prime (2021202110219) by changing a digit.

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 as a sum of consecutive naturals, namely, 252650263773 + ... + 252650263780.

Almost surely, 2^{2021202110212} is an apocalyptic number.

It is an amenable number.

2021202110212 is a deficient number, since it is larger than the sum of its proper divisors (1515901582666).

2021202110212 is a wasteful number, since it uses less digits than its factorization.

2021202110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505300527557 (or 505300527555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021202110212 its reverse (2120112021202), we get a palindrome (4141314131414).

The spelling of 2021202110212 in words is "two trillion, twenty-one billion, two hundred two million, one hundred ten thousand, two hundred twelve".