202221201222 has 24 divisors (see below), whose sum is σ = 438380186400. Its totient is φ = 67371028560.

The previous prime is 202221201191. The next prime is 202221201257. The reversal of 202221201222 is 222102122202.

202221201222 is a `hidden beast` number, since 20 + 2 + 221 + 201 + 222 = 666.

202221201222 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-2 number, since 2×202221201222² (a number of 23 digits) contains 22 as substring.

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 = 202221201195 and 202221201204.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2968597 + ... + 3035952.

It is an arithmetic number, because the mean of its divisors is an integer number (18265841100).

Almost surely, 2^202221201222 is an apocalyptic number.

202221201222 is an abundant number, since it is smaller than the sum of its proper divisors (236158985178).

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

202221201222 is a wasteful number, since it uses less digits than its factorization.

202221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006428 (or 6006425 counting only the distinct ones).

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

Adding to 202221201222 its reverse (222102122202), we get a palindrome (424323323424).

The spelling of 202221201222 in words is "two hundred two billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".