2021220200212 has 12 divisors (see below), whose sum is σ = 3537145317076. Its totient is φ = 1010607252480.

The previous prime is 2021220200171. The next prime is 2021220200213. The reversal of 2021220200212 is 2120020221202.

It can be written as a sum of positive squares in 2 ways, for example, as 1974907438596 + 46312761616 = 1405314^2 + 215204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021220200213) 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, 2317012 + ... + 3067732.

Almost surely, 2^{2021220200212} is an apocalyptic number.

It is an amenable number.

2021220200212 is a deficient number, since it is larger than the sum of its proper divisors (1515925116864).

2021220200212 is a wasteful number, since it uses less digits than its factorization.

2021220200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423818 (or 1423816 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021220200212 its reverse (2120020221202), we get a palindrome (4141240421414).

The spelling of 2021220200212 in words is "two trillion, twenty-one billion, two hundred twenty million, two hundred thousand, two hundred twelve".