202022212212 has 48 divisors (see below), whose sum is σ = 546533527680. Its totient is φ = 64412878464.

The previous prime is 202022212159. The next prime is 202022212213. The reversal of 202022212212 is 212212220202.

202022212212 is a `hidden beast` number, since 20 + 202 + 221 + 221 + 2 = 666.

202022212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×202022212212³ (a number of 35 digits) contains 333 as substring.

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 (202022212213) 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 15 ways as a sum of consecutive naturals, for example, 40662213 + ... + 40667180.

It is an arithmetic number, because the mean of its divisors is an integer number (11386115160).

Almost surely, 2^202022212212 is an apocalyptic number.

It is an amenable number.

202022212212 is an abundant number, since it is smaller than the sum of its proper divisors (344511315468).

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

202022212212 is a wasteful number, since it uses less digits than its factorization.

202022212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81329429 (or 81329421 counting only the distinct ones).

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

Adding to 202022212212 its reverse (212212220202), we get a palindrome (414234432414).

The spelling of 202022212212 in words is "two hundred two billion, twenty-two million, two hundred twelve thousand, two hundred twelve".