12012222202021 has 8 divisors (see below), whose sum is σ = 12700146826080. Its totient is φ = 11329867818288.

The previous prime is 12012222201961. The next prime is 12012222202031. The reversal of 12012222202021 is 12020222221021.

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 12012222202021 - 2¹¹ = 12012222199973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12012222202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012222202031) 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, 1392555646 + ... + 1392564271.

It is an arithmetic number, because the mean of its divisors is an integer number (1587518353260).

Almost surely, 2^{12012222202021} is an apocalyptic number.

It is an amenable number.

12012222202021 is a deficient number, since it is larger than the sum of its proper divisors (687924624059).

12012222202021 is a wasteful number, since it uses less digits than its factorization.

12012222202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785120163.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12012222202021 its reverse (12020222221021), we get a palindrome (24032444423042).

The spelling of 12012222202021 in words is "twelve trillion, twelve billion, two hundred twenty-two million, two hundred two thousand, twenty-one".