202222212111220 has 48 divisors (see below), whose sum is σ = 485340319941120. Its totient is φ = 69332328313344.

The previous prime is 202222212111209. The next prime is 202222212111247. The reversal of 202222212111220 is 22111212222202.

It is a junction number, because it is equal to n+sod(n) for n = 202222212111191 and 202222212111200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674140 + ... + 20122099.

It is an arithmetic number, because the mean of its divisors is an integer number (10111256665440).

Almost surely, 2^{202222212111220} is an apocalyptic number.

202222212111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202222212111220 is an abundant number, since it is smaller than the sum of its proper divisors (283118107829900).

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

202222212111220 is a wasteful number, since it uses less digits than its factorization.

202222212111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20865712 (or 20865710 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202222212111220 its reverse (22111212222202), we get a palindrome (224333424333422).

The spelling of 202222212111220 in words is "two hundred two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred eleven thousand, two hundred twenty".