12242121222 has 16 divisors (see below), whose sum is σ = 24485708592. Its totient is φ = 4080462720.

The previous prime is 12242121149. The next prime is 12242121223. The reversal of 12242121222 is 22212124221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242121223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68658 + ... + 170874.

It is an arithmetic number, because the mean of its divisors is an integer number (1530356787).

Almost surely, 2^12242121222 is an apocalyptic number.

12242121222 is an abundant number, since it is smaller than the sum of its proper divisors (12243587370).

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

12242121222 is a wasteful number, since it uses less digits than its factorization.

12242121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122183.

The product of its digits is 512, while the sum is 21.

Adding to 12242121222 its reverse (22212124221), we get a palindrome (34454245443).

The spelling of 12242121222 in words is "twelve billion, two hundred forty-two million, one hundred twenty-one thousand, two hundred twenty-two".