12022212100021 has 8 divisors (see below), whose sum is σ = 12041497062144. Its totient is φ = 12002935854000.

The previous prime is 12022212100009. The next prime is 12022212100027. The reversal of 12022212100021 is 12000121222021.

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 12022212100021 - 2⁷ = 12022212099893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022212099968 and 12022212100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022212100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584616 + ... + 4938238.

It is an arithmetic number, because the mean of its divisors is an integer number (1505187132768).

Almost surely, 2^{12022212100021} is an apocalyptic number.

It is an amenable number.

12022212100021 is a deficient number, since it is larger than the sum of its proper divisors (19284962123).

12022212100021 is an equidigital number, since it uses as much as digits as its factorization.

12022212100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358051.

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

Adding to 12022212100021 its reverse (12000121222021), we get a palindrome (24022333322042).

The spelling of 12022212100021 in words is "twelve trillion, twenty-two billion, two hundred twelve million, one hundred thousand, twenty-one".