12022001122221 has 96 divisors (see below), whose sum is σ = 18514507659648. Its totient is φ = 7791198347520.

The previous prime is 12022001122199. The next prime is 12022001122253. The reversal of 12022001122221 is 12222110022021.

It is a happy number.

12022001122221 is a `hidden beast` number, since 120 + 2 + 200 + 1 + 122 + 221 = 666.

It is not a de Polignac number, because 12022001122221 - 2⁵ = 12022001122189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12022001122194 and 12022001122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022001172221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3418252755 + ... + 3418256271.

It is an arithmetic number, because the mean of its divisors is an integer number (192859454788).

Almost surely, 2^{12022001122221} is an apocalyptic number.

It is an amenable number.

12022001122221 is a deficient number, since it is larger than the sum of its proper divisors (6492506537427).

12022001122221 is a wasteful number, since it uses less digits than its factorization.

12022001122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12022001122221 its reverse (12222110022021), we get a palindrome (24244111144242).

The spelling of 12022001122221 in words is "twelve trillion, twenty-two billion, one million, one hundred twenty-two thousand, two hundred twenty-one".