202212111222 has 24 divisors (see below), whose sum is σ = 477955899720. Its totient is φ = 61276397280.

The previous prime is 202212111203. The next prime is 202212111247. The reversal of 202212111222 is 222111212202.

It is a happy number.

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 = 202212111195 and 202212111204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510636447 + ... + 510636842.

It is an arithmetic number, because the mean of its divisors is an integer number (19914829155).

Almost surely, 2^202212111222 is an apocalyptic number.

202212111222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202212111222 is an abundant number, since it is smaller than the sum of its proper divisors (275743788498).

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

202212111222 is a wasteful number, since it uses less digits than its factorization.

202212111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021273308 (or 1021273305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202212111222 its reverse (222111212202), we get a palindrome (424323323424).

The spelling of 202212111222 in words is "two hundred two billion, two hundred twelve million, one hundred eleven thousand, two hundred twenty-two".