12022121221001 has 4 divisors (see below), whose sum is σ = 12022442164992. Its totient is φ = 12021800277012.

The previous prime is 12022121220937. The next prime is 12022121221043. The reversal of 12022121221001 is 10012212122021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12022121221001 - 2⁶ = 12022121220937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022121221051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160415801 + ... + 160490726.

It is an arithmetic number, because the mean of its divisors is an integer number (3005610541248).

Almost surely, 2^{12022121221001} is an apocalyptic number.

It is an amenable number.

12022121221001 is a deficient number, since it is larger than the sum of its proper divisors (320943991).

12022121221001 is an equidigital number, since it uses as much as digits as its factorization.

12022121221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320943990.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12022121221001 its reverse (10012212122021), we get a palindrome (22034333343022).

The spelling of 12022121221001 in words is "twelve trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one".