12022120001221 has 8 divisors (see below), whose sum is σ = 13805305264800. Its totient is φ = 10353978948240.

The previous prime is 12022120001131. The next prime is 12022120001231. The reversal of 12022120001221 is 12210002122021.

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 12022120001221 - 2⁷ = 12022120001093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022120001195 and 12022120001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022120001231) 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, 28761052426 + ... + 28761052843.

It is an arithmetic number, because the mean of its divisors is an integer number (1725663158100).

Almost surely, 2^{12022120001221} is an apocalyptic number.

12022120001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12022120001221 is a deficient number, since it is larger than the sum of its proper divisors (1783185263579).

12022120001221 is a wasteful number, since it uses less digits than its factorization.

12022120001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57522105299.

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

Adding to 12022120001221 its reverse (12210002122021), we get a palindrome (24232122123242).

The spelling of 12022120001221 in words is "twelve trillion, twenty-two billion, one hundred twenty million, one thousand, two hundred twenty-one".