12022122121 has 8 divisors (see below), whose sum is σ = 12412044288. Its totient is φ = 11632332000.

The previous prime is 12022122113. The next prime is 12022122127. The reversal of 12022122121 is 12122122021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12022122121 - 2³ = 12022122113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022122095 and 12022122104.

It is not an unprimeable number, because it can be changed into a prime (12022122127) 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, 172416 + ... + 231886.

It is an arithmetic number, because the mean of its divisors is an integer number (1551505536).

Almost surely, 2^12022122121 is an apocalyptic number.

It is an amenable number.

12022122121 is a deficient number, since it is larger than the sum of its proper divisors (389922167).

12022122121 is an equidigital number, since it uses as much as digits as its factorization.

12022122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66023.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12022122121 its reverse (12122122021), we get a palindrome (24144244142).

The spelling of 12022122121 in words is "twelve billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".