2021202220212 has 72 divisors (see below), whose sum is σ = 5847705246656. Its totient is φ = 576628222464.

The previous prime is 2021202220211. The next prime is 2021202220277. The reversal of 2021202220212 is 2120222021202.

2021202220212 is a `hidden beast` number, since 20 + 212 + 0 + 2 + 220 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5789278 + ... + 6128469.

Almost surely, 2^{2021202220212} is an apocalyptic number.

It is an amenable number.

2021202220212 is an abundant number, since it is smaller than the sum of its proper divisors (3826503026444).

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

2021202220212 is a wasteful number, since it uses less digits than its factorization.

2021202220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918437 (or 11918432 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2021202220212 its reverse (2120222021202), we get a palindrome (4141424241414).

The spelling of 2021202220212 in words is "two trillion, twenty-one billion, two hundred two million, two hundred twenty thousand, two hundred twelve".