202212120111222 has 128 divisors (see below), whose sum is σ = 449087932661760. Its totient is φ = 60303301493760.

The previous prime is 202212120111173. The next prime is 202212120111223. The reversal of 202212120111222 is 222111021212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212120111223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 707468983 + ... + 707754749.

It is an arithmetic number, because the mean of its divisors is an integer number (3508499473920).

Almost surely, 2^{202212120111222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202212120111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224543966330880).

202212120111222 is an abundant number, since it is smaller than the sum of its proper divisors (246875812550538).

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

202212120111222 is a wasteful number, since it uses less digits than its factorization.

202212120111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287278.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202212120111222 its reverse (222111021212202), we get a palindrome (424323141323424).

The spelling of 202212120111222 in words is "two hundred two trillion, two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty-two".