12022220121 has 8 divisors (see below), whose sum is σ = 16420593504. Its totient is φ = 7819330080.

The previous prime is 12022220101. The next prime is 12022220141. The reversal of 12022220121 is 12102222021.

It is an interprime number because it is at equal distance from previous prime (12022220101) and next prime (12022220141).

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

It is not a de Polignac number, because 12022220121 - 2⁹ = 12022219609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12022220121.

It is not an unprimeable number, because it can be changed into a prime (12022220101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48870691 + ... + 48870936.

It is an arithmetic number, because the mean of its divisors is an integer number (2052574188).

Almost surely, 2^12022220121 is an apocalyptic number.

It is an amenable number.

12022220121 is a deficient number, since it is larger than the sum of its proper divisors (4398373383).

12022220121 is an equidigital number, since it uses as much as digits as its factorization.

12022220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97741671.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12022220121 its reverse (12102222021), we get a palindrome (24124442142).

The spelling of 12022220121 in words is "twelve billion, twenty-two million, two hundred twenty thousand, one hundred twenty-one".