12222121022 has 8 divisors (see below), whose sum is σ = 18339227256. Its totient is φ = 6109045272.

The previous prime is 12222121001. The next prime is 12222121031. The reversal of 12222121022 is 22012122221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1000028 + ... + 1012175.

It is an arithmetic number, because the mean of its divisors is an integer number (2292403407).

Almost surely, 2^12222121022 is an apocalyptic number.

12222121022 is a deficient number, since it is larger than the sum of its proper divisors (6117106234).

12222121022 is a wasteful number, since it uses less digits than its factorization.

12222121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015242.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12222121022 its reverse (22012122221), we get a palindrome (34234243243).

The spelling of 12222121022 in words is "twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-two".