202102212222 has 24 divisors (see below), whose sum is σ = 460934870760. Its totient is φ = 63821751120.

The previous prime is 202102212199. The next prime is 202102212227. The reversal of 202102212222 is 222212201202.

202102212222 is a `hidden beast` number, since 20 + 210 + 2 + 212 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 202102212195 and 202102212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102212227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295470729 + ... + 295471412.

It is an arithmetic number, because the mean of its divisors is an integer number (19205619615).

Almost surely, 2^202102212222 is an apocalyptic number.

202102212222 is an abundant number, since it is smaller than the sum of its proper divisors (258832658538).

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

202102212222 is a wasteful number, since it uses less digits than its factorization.

202102212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590942168 (or 590942165 counting only the distinct ones).

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

Adding to 202102212222 its reverse (222212201202), we get a palindrome (424314413424).

The spelling of 202102212222 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, two hundred twenty-two".